From ec1f11abe29bdd787152d64140a403727f83e898 Mon Sep 17 00:00:00 2001
From: ptka4xvyr <2190210566@qq.com>
Date: Sun, 4 Jun 2023 23:15:49 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BB=A3=E7=A0=81=E5=88=86=E6=9E=90?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 doc/成员代码分析/jbc/BackupUtils.java   | 178 ++++++-------
 doc/成员代码分析/jbc/DataUtils.java     | 125 +++++----
 doc/成员代码分析/jbc/GTaskManager.java  |  37 +--
 .../jbc/GTaskStringUtils.java                 |  43 +---
 doc/成员代码分析/jbc/Note.java          | 132 ++++++----
 doc/成员代码分析/jbc/WorkingNote.java   |  78 ++++--
 doc/成员代码分析/jhw/Contact.java       |  86 +++++--
 doc/成员代码分析/jhw/MetaData.java      |  11 +-
 doc/成员代码分析/jhw/Notes.java         |  93 +++++--
 .../jhw/NotesDatabaseHelper.java              | 239 +++++++-----------
 doc/成员代码分析/jhw/NotesProvider.java |  29 ++-
 doc/成员代码分析/lzb/SqlNote.java       |  92 ++++---
 doc/成员代码分析/lzb/Task.java          |  72 +++---
 doc/成员代码分析/lzb/TaskList.java      |  64 ++++-
 14 files changed, 720 insertions(+), 559 deletions(-)

diff --git a/doc/成员代码分析/jbc/BackupUtils.java b/doc/成员代码分析/jbc/BackupUtils.java
index 11c21f3..b407e84 100644
--- a/doc/成员代码分析/jbc/BackupUtils.java
+++ b/doc/成员代码分析/jbc/BackupUtils.java
@@ -1,54 +1,38 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.tool;
 
-import android.content.Context;
-import android.database.Cursor;
-import android.os.Environment;
-import android.text.TextUtils;
-import android.text.format.DateFormat;
-import android.util.Log;
+//定义小米便签类：功能类
+import android.content.Context;//导入小米便签需要的各项函数
+import android.database.Cursor;//android查询数据库类
+import android.os.Environment;//安卓操作系统环境包
+import android.text.TextUtils;//导入安卓文本功能包
+import android.text.format.DateFormat;//用于转化日期格式
+import android.util.Log;//打印日志消息的类
 
 import net.micode.notes.R;
 import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.DataConstants;
-import net.micode.notes.data.Notes.NoteColumns;
+import net.micode.notes.data.Notes.DataColumns;// 数据类型类
+import net.micode.notes.data.Notes.DataConstants;//常数类
+import net.micode.notes.data.Notes.NoteColumns;//便签类
 
 import java.io.File;
-import java.io.FileNotFoundException;
+import java.io.FileNotFoundException;//文件未找到的错误处理
 import java.io.FileOutputStream;
-import java.io.IOException;
+import java.io.IOException;//操作错误处理
 import java.io.PrintStream;
 
-
-
-
 public class BackupUtils {
     private static final String TAG = "BackupUtils";
     // Singleton stuff
-    private static BackupUtils sInstance;   //类里面为什么可以定义自身类的对象？
+    private static BackupUtils sInstance; // 类里面为什么可以定义自身类的对象？
 
     public static synchronized BackupUtils getInstance(Context context) {
-        //ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A）
-        //运行到这个方法时,都要检查有没有其它线程B（或者C、 D等）正在用这个方法(或者该类的其他同步方法)，有的话要等正在使用synchronized方法的线程B（或者C 、D）运行完这个方法后再运行此线程A,没有的话,锁定调用者,然后直接运行。
-        //它包括两种用法：synchronized 方法和 synchronized 块。
+        // ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A）
+        // 运行到这个方法时,都要检查有没有其它线程B（或者C、
+        // D等）正在用这个方法(或者该类的其他同步方法)，有的话要等正在使用synchronized方法的线程B（或者C
+        // 、D）运行完这个方法后再运行此线程A,没有的话,锁定调用者,然后直接运行。
+        // 它包括两种用法：synchronized 方法和 synchronized 块。
         if (sInstance == null) {
-            //如果当前备份不存在，则新声明一个
+            // 如果当前备份不存在，则新声明一个
             sInstance = new BackupUtils(context);
         }
         return sInstance;
@@ -59,86 +43,94 @@ public class BackupUtils {
      * status
      */
     // Currently, the sdcard is not mounted SD卡没有被装入手机
-    public static final int STATE_SD_CARD_UNMOUONTED           = 0;
-    // The backup file not exist  备份文件夹不存在
-    public static final int STATE_BACKUP_FILE_NOT_EXIST        = 1;
-    // The data is not well formated, may be changed by other programs  数据已被破坏，可能被修改
-    public static final int STATE_DATA_DESTROIED               = 2;
-    // Some run-time exception which causes restore or backup fails  超时异常
-    public static final int STATE_SYSTEM_ERROR                 = 3;
-    // Backup or restore success  成功存储
-    public static final int STATE_SUCCESS                      = 4;
+    public static final int STATE_SD_CARD_UNMOUONTED = 0;
+    // The backup file not exist 备份文件夹不存在
+    public static final int STATE_BACKUP_FILE_NOT_EXIST = 1;
+    // The data is not well formated, may be changed by other programs 数据已被破坏，可能被修改
+    public static final int STATE_DATA_DESTROIED = 2;
+    // Some run-time exception which causes restore or backup fails 超时异常
+    public static final int STATE_SYSTEM_ERROR = 3;
+    // Backup or restore success 成功存储
+    public static final int STATE_SUCCESS = 4;
 
     private TextExport mTextExport;
 
-    private BackupUtils(Context context) {  //初始化函数
+    private BackupUtils(Context context) { // 初始化函数
         mTextExport = new TextExport(context);
     }
 
-    private static boolean externalStorageAvailable() {   //外部存储功能是否可用
+    private static boolean externalStorageAvailable() { // 外部存储功能是否可用
         return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState());
     }
 
     public int exportToText() {
+        // 输出至文本
         return mTextExport.exportToText();
     }
 
     public String getExportedTextFileName() {
+        // 返回文件名
         return mTextExport.mFileName;
     }
 
     public String getExportedTextFileDir() {
+        // 返回文件的路径
         return mTextExport.mFileDirectory;
     }
 
     private static class TextExport {
+        // 内部类：文本输出定义笔记ID、修改日期等，笔记、内容、日期、电话号码的数据和格式等常量
         private static final String[] NOTE_PROJECTION = {
+                // 定义了一个数组储存便签的信息
                 NoteColumns.ID,
                 NoteColumns.MODIFIED_DATE,
                 NoteColumns.SNIPPET,
                 NoteColumns.TYPE
         };
-
+        // 标识设定：笔记ID标识为0；笔记的修改日期标识为1；笔记的数据标识为2.
         private static final int NOTE_COLUMN_ID = 0;
-
+        // 定义了一个数组储存的是数据的信息
         private static final int NOTE_COLUMN_MODIFIED_DATE = 1;
-
+        // 定义了一个数组储存的是数据的信息
         private static final int NOTE_COLUMN_SNIPPET = 2;
-
+        // 初始化上述一些参数
         private static final String[] DATA_PROJECTION = {
+                // 数据在数据库中的信息
                 DataColumns.CONTENT,
-                DataColumns.MIME_TYPE,
+                DataColumns.MIME_TYPE, // 变量：该资源的媒体类型，决定怎么用这个资源
                 DataColumns.DATA1,
                 DataColumns.DATA2,
                 DataColumns.DATA3,
                 DataColumns.DATA4,
         };
-
+        // 标识设定：数据内容标识为0；媒体类型标识为1；访问日期标识为2；电话号码标识为4；
         private static final int DATA_COLUMN_CONTENT = 0;
 
         private static final int DATA_COLUMN_MIME_TYPE = 1;
-
+        // 数据媒体类型标识为1
         private static final int DATA_COLUMN_CALL_DATE = 2;
-
+        // 日期标识为2
         private static final int DATA_COLUMN_PHONE_NUMBER = 4;
-
-        private final String [] TEXT_FORMAT;
-        private static final int FORMAT_FOLDER_NAME          = 0;
-        private static final int FORMAT_NOTE_DATE            = 1;
-        private static final int FORMAT_NOTE_CONTENT         = 2;
+        // 初始化上述一些参数
+        private final String[] TEXT_FORMAT;// 文档格式标识：名称=>0;日期=>1;内容=>2
+        private static final int FORMAT_FOLDER_NAME = 0;
+        private static final int FORMAT_NOTE_DATE = 1;// 便签内容数据格式
+        private static final int FORMAT_NOTE_CONTENT = 2;
 
         private Context mContext;
-        private String mFileName;
-        private String mFileDirectory;
+        private String mFileName;// 文件名
+        private String mFileDirectory;// 文件路径
 
         public TextExport(Context context) {
+            // 从context类实例中获取信息，给对应的属性赋初始值
             TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note);
+            // 根据文件定义的地址处获取文件格式的数组
             mContext = context;
-            mFileName = "";    //为什么为空?
+            mFileName = ""; // 为什么为空?
             mFileDirectory = "";
         }
 
-        private String getFormat(int id) {  //获取文本的组成部分
+        private String getFormat(int id) { // 获取文本的组成部分
             return TEXT_FORMAT[id];
         }
 
@@ -146,22 +138,25 @@ public class BackupUtils {
          * Export the folder identified by folder id to text
          */
         private void exportFolderToText(String folderId, PrintStream ps) {
-            // Query notes belong to this folder  通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note
+            // Query notes belong to this folder 通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note
             Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] {
                             folderId
                     }, null);
 
             if (notesCursor != null) {
+                // ps里面保存有这份note的日期
                 if (notesCursor.moveToFirst()) {
                     do {
-                        // Print note's last modified date   ps里面保存有这份note的日期
+                        // Print note's last modified date ps里面保存有这份note的日期
+                        // 函数：打印最后修改日期
                         ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format(
                                 mContext.getString(R.string.format_datetime_mdhm),
                                 notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE))));
                         // Query data belong to this note
                         String noteId = notesCursor.getString(NOTE_COLUMN_ID);
-                        exportNoteToText(noteId, ps);  //将文件导出到text
+                        // 代码块：通过将便签内容打印到屏幕上检查是不是这个note的数据
+                        exportNoteToText(noteId, ps); // 将文件导出到text
                     } while (notesCursor.moveToNext());
                 }
                 notesCursor.close();
@@ -172,35 +167,41 @@ public class BackupUtils {
          * Export note identified by id to a print stream
          */
         private void exportNoteToText(String noteId, PrintStream ps) {
+            // 函数：将便签的内容以文本的形式显示在屏幕上。比如电话号码、打电话的日期等。
             Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI,
+                    // 利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出
                     DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] {
                             noteId
                     }, null);
 
-            if (dataCursor != null) { //利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出
+            if (dataCursor != null) { // 利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出
                 if (dataCursor.moveToFirst()) {
-                    do {
+                    do {// 位置
                         String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE);
                         if (DataConstants.CALL_NOTE.equals(mimeType)) {
                             // Print phone number
+                            // 语句：判断便签的内容，如果是电话记录，那么在这一个代码块内打印
                             String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER);
                             long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE);
                             String location = dataCursor.getString(DATA_COLUMN_CONTENT);
 
-                            if (!TextUtils.isEmpty(phoneNumber)) {  //判断是否为空字符
+                            if (!TextUtils.isEmpty(phoneNumber)) { // 判断是否为空字符
                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
-                                        phoneNumber));
+                                        phoneNumber));// 输出电话号码phoneNumber
                             }
                             // Print call date
                             ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat
+                                    // 输出calldate
                                     .format(mContext.getString(R.string.format_datetime_mdhm),
                                             callDate)));
                             // Print call attachment location
                             if (!TextUtils.isEmpty(location)) {
+                                // 输出位置location
                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
                                         location));
                             }
                         } else if (DataConstants.NOTE.equals(mimeType)) {
+                            // print a line separator between note
                             String content = dataCursor.getString(DATA_COLUMN_CONTENT);
                             if (!TextUtils.isEmpty(content)) {
                                 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT),
@@ -213,18 +214,18 @@ public class BackupUtils {
             }
             // print a line separator between note
             try {
-                ps.write(new byte[] {
+                ps.write(new byte[] { // 语句块：在note下面输出一条线
                         Character.LINE_SEPARATOR, Character.LETTER_NUMBER
                 });
             } catch (IOException e) {
-                Log.e(TAG, e.toString());
+                Log.e(TAG, e.toString());// 捕获错误信息并记录异常日志
             }
         }
 
         /**
          * Note will be exported as text which is user readable
          */
-        public int exportToText() {    //总函数，调用上面的exportFolder和exportNote
+        public int exportToText() { // 总函数，调用上面的exportFolder和exportNote
             if (!externalStorageAvailable()) {
                 Log.d(TAG, "Media was not mounted");
                 return STATE_SD_CARD_UNMOUONTED;
@@ -235,20 +236,21 @@ public class BackupUtils {
                 Log.e(TAG, "get print stream error");
                 return STATE_SYSTEM_ERROR;
             }
-            // First export folder and its notes                                 导出文件夹，就是导出里面包含的便签
+            // First export folder and its notes 导出文件夹，就是导出里面包含的便签
             Cursor folderCursor = mContext.getContentResolver().query(
                     Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION,
                     "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND "
                             + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR "
-                            + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null);
+                            + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER,
+                    null, null);
 
             if (folderCursor != null) {
                 if (folderCursor.moveToFirst()) {
                     do {
                         // Print folder's name
                         String folderName = "";
-                        if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
+                        if (folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) {
                             folderName = mContext.getString(R.string.call_record_folder_name);
                         } else {
                             folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET);
@@ -263,12 +265,13 @@ public class BackupUtils {
                 folderCursor.close();
             }
 
-            // Export notes in root's folder                     将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出）
+            // Export notes in root's folder 将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出）
             Cursor noteCursor = mContext.getContentResolver().query(
                     Notes.CONTENT_NOTE_URI,
                     NOTE_PROJECTION,
                     NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID
-                            + "=0", null, null);
+                            + "=0",
+                    null, null);
 
             if (noteCursor != null) {
                 if (noteCursor.moveToFirst()) {
@@ -279,7 +282,7 @@ public class BackupUtils {
                         // Query data belong to this note
                         String noteId = noteCursor.getString(NOTE_COLUMN_ID);
                         exportNoteToText(noteId, ps);
-                    } while (noteCursor.moveToNext());
+                    } while (noteCursor.moveToNext());// 文件夹的光标下移
                 }
                 noteCursor.close();
             }
@@ -292,10 +295,13 @@ public class BackupUtils {
          * Get a print stream pointed to the file {@generateExportedTextFile}
          */
         private PrintStream getExportToTextPrintStream() {
+            // 获取指向文件的打印流
             File file = generateFileMountedOnSDcard(mContext, R.string.file_path,
+                    // .在预先的目录里创建文件
                     R.string.file_name_txt_format);
             if (file == null) {
                 Log.e(TAG, "create file to exported failed");
+                //记录异常日志
                 return null;
             }
             mFileName = file.getName();
@@ -303,7 +309,7 @@ public class BackupUtils {
             PrintStream ps = null;
             try {
                 FileOutputStream fos = new FileOutputStream(file);
-                ps = new PrintStream(fos);                           //将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出
+                ps = new PrintStream(fos); // 将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出
             } catch (FileNotFoundException e) {
                 e.printStackTrace();
                 return null;
@@ -320,16 +326,16 @@ public class BackupUtils {
      */
     private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) {
         StringBuilder sb = new StringBuilder();
-        sb.append(Environment.getExternalStorageDirectory());  //外部（SD卡）的存储路径
-        sb.append(context.getString(filePathResId));    //文件的存储路径
-        File filedir = new File(sb.toString());        //filedir应该就是用来存储路径信息
+        sb.append(Environment.getExternalStorageDirectory()); // 外部（SD卡）的存储路径
+        sb.append(context.getString(filePathResId)); // 文件的存储路径
+        File filedir = new File(sb.toString()); // filedir应该就是用来存储路径信息
         sb.append(context.getString(
                 fileNameFormatResId,
                 DateFormat.format(context.getString(R.string.format_date_ymd),
                         System.currentTimeMillis())));
         File file = new File(sb.toString());
 
-        try {   //如果这些文件不存在，则新建
+        try { // 如果这些文件不存在，则新建
             if (!filedir.exists()) {
                 filedir.mkdir();
             }
@@ -342,9 +348,7 @@ public class BackupUtils {
         } catch (IOException e) {
             e.printStackTrace();
         }
-// try catch 异常处理
+        // try catch 异常处理
         return null;
     }
 }
-
-
diff --git a/doc/成员代码分析/jbc/DataUtils.java b/doc/成员代码分析/jbc/DataUtils.java
index abfd276..5c06a95 100644
--- a/doc/成员代码分析/jbc/DataUtils.java
+++ b/doc/成员代码分析/jbc/DataUtils.java
@@ -16,8 +16,11 @@
 
 package net.micode.notes.tool;
 
+//使用的包
 import android.content.ContentProviderOperation;
+// 导入相关的库
 import android.content.ContentProviderResult;
+//批量删除笔记
 import android.content.ContentResolver;
 import android.content.ContentUris;
 import android.content.ContentValues;
@@ -29,18 +32,21 @@ import android.util.Log;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.CallNote;
 import net.micode.notes.data.Notes.NoteColumns;
+//便签栏的数据
 import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute;
 
 import java.util.ArrayList;
 import java.util.HashSet;
 
-
-
 public class DataUtils {
+    // 数据的集成工具类
     public static final String TAG = "DataUtils";
-    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) {   //直接删除多个笔记
+
+    public static boolean batchDeleteNotes(ContentResolver resolver, HashSet<Long> ids) { // 直接删除多个笔记
+        // 这是一个处理批量删除便签的方法
         if (ids == null) {
             Log.d(TAG, "the ids is null");
+            // Android Logcat使用起来可以方便的观察调试内容
             return true;
         }
         if (ids.size() == 0) {
@@ -48,26 +54,29 @@ public class DataUtils {
             return true;
         }
 
-        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();  //提供一个任务列表
+        ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>(); // 提供一个任务列表
         for (long id : ids) {
-            if(id == Notes.ID_ROOT_FOLDER) {
+            if (id == Notes.ID_ROOT_FOLDER) {
                 Log.e(TAG, "Don't delete system folder root");
                 continue;
-            }  //如果发现是根文件夹，则不删除
+            } // 如果发现是根文件夹，则不删除
             ContentProviderOperation.Builder builder = ContentProviderOperation
-                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));  //用newDelete实现删除功能
-            operationList.add(builder.build());   //
+                    .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); // 用newDelete实现删除功能
+            operationList.add(builder.build()); //
         }
         try {
-            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);//主机名（或叫Authority）用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。
-            //数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);// 主机名（或叫Authority）用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。
+            // 数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行
             if (results == null || results.length == 0 || results[0] == null) {
                 Log.d(TAG, "delete notes failed, ids:" + ids.toString());
+                // 检测当前要删除的便签是否是根目录，如果是根目录，，返回异常信息
                 return false;
             }
             return true;
         } catch (RemoteException e) {
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+            // 函数：String.format(Locale locale, String format, Object… args)
+            // 使用指定的语言环境，制定字符串格式和参数生成格式化的字符串。
         } catch (OperationApplicationException e) {
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
         }
@@ -75,37 +84,46 @@ public class DataUtils {
     }
 
     public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) {
-        ContentValues values = new ContentValues();
+        // 将笔记移动至文件夹
+        ContentValues values = new ContentValues();// 将PARENT_ID更改为目标目录ID
         values.put(NoteColumns.PARENT_ID, desFolderId);
         values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId);
         values.put(NoteColumns.LOCAL_MODIFIED, 1);
-        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null);  //对需要移动的便签进行数据更新，然后用update实现
+        resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); // 对需要移动的便签进行数据更新，然后用update实现
     }
 
     public static boolean batchMoveToFolder(ContentResolver resolver, HashSet<Long> ids,
-                                            long folderId) {
+            // 批量移动
+            long folderId) {
+        // ID为空的情况
         if (ids == null) {
             Log.d(TAG, "the ids is null");
+            // ID为空的情况
             return true;
         }
 
         ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
         for (long id : ids) {
+            // 为uri加上id
             ContentProviderOperation.Builder builder = ContentProviderOperation
-                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id));  //通过withAppendedId方法，为该Uri加上ID
+                    .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); // 通过withAppendedId方法，为该Uri加上ID
             builder.withValue(NoteColumns.PARENT_ID, folderId);
+            // 代码块：以下两句话和上面一个方法类似，就是修改便签的父节点id为新的文件夹的id，然后更改修改标志
             builder.withValue(NoteColumns.LOCAL_MODIFIED, 1);
+            // 更改状态置为1
             operationList.add(builder.build());
-        }//将ids里包含的每一列的数据逐次加入到operationList中，等待最后的批量处理
+        } // 将ids里包含的每一列的数据逐次加入到operationList中，等待最后的批量处理
 
         try {
-            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);  //applyBatch一次性处理一个操作列表
+            ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); // applyBatch一次性处理一个操作列表
+            // 调用applybatch一次性处理一个操作列表
             if (results == null || results.length == 0 || results[0] == null) {
                 Log.d(TAG, "delete notes failed, ids:" + ids.toString());
                 return false;
             }
             return true;
         } catch (RemoteException e) {
+            // . 确定格式
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
         } catch (OperationApplicationException e) {
             Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
@@ -117,16 +135,18 @@ public class DataUtils {
      * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}}
      */
     public static int getUserFolderCount(ContentResolver resolver) {
-        Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI,
+        Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
                 new String[] { "COUNT(*)" },
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?",
-                new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)},
-                null);  //筛选条件：源文件不为trash folder
+                new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER) },
+                null); // 筛选条件：源文件不为trash folder
 
         int count = 0;
-        if(cursor != null) {
-            if(cursor.moveToFirst()) {
+        if (cursor != null) {
+            // 语句块：尝试得到用户文件夹的数量
+            if (cursor.moveToFirst()) {
                 try {
+                    // .异常处理
                     count = cursor.getInt(0);
                 } catch (IndexOutOfBoundsException e) {
                     Log.e(TAG, "get folder count failed:" + e.toString());
@@ -139,15 +159,16 @@ public class DataUtils {
     }
 
     public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) {
-        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), //通过withAppendedId方法，为该Uri加上ID
+        // 在数据库中是否可见
+        Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), // 通过withAppendedId方法，为该Uri加上ID
                 null,
                 NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER,
-                new String [] {String.valueOf(type)},
-                null); //查询条件：type符合，且不属于垃圾文件夹
+                new String[] { String.valueOf(type) },
+                null); // 查询条件：type符合，且不属于垃圾文件夹
 
         boolean exist = false;
         if (cursor != null) {
-            if (cursor.getCount() > 0) {//用getcount函数判断cursor是否为空
+            if (cursor.getCount() > 0) {// 用getcount函数判断cursor是否为空
                 exist = true;
             }
             cursor.close();
@@ -156,6 +177,7 @@ public class DataUtils {
     }
 
     public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) {
+        // 判断该note是否在数据库中存在
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId),
                 null, null, null, null);
 
@@ -170,12 +192,14 @@ public class DataUtils {
     }
 
     public static boolean existInDataDatabase(ContentResolver resolver, long dataId) {
+        // 检查文件名字是否可见
         Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId),
                 null, null, null, null);
-
+        // 通过URI与dataId在数据库中查找数据
         boolean exist = false;
         if (cursor != null) {
             if (cursor.getCount() > 0) {
+                // 调用对应的uri的数据值进行查询
                 exist = true;
             }
             cursor.close();
@@ -184,15 +208,17 @@ public class DataUtils {
     }
 
     public static boolean checkVisibleFolderName(ContentResolver resolver, String name) {
+        // 函数：通过名字查询文件是否存在
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null,
+                // 语句：筛选类型正确的、未被删除的和名字对应得上的
                 NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER +
                         " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER +
                         " AND " + NoteColumns.SNIPPET + "=?",
                 new String[] { name }, null);
-        //通过名字查询文件是否存在
+        // 通过名字查询文件是否存在
         boolean exist = false;
-        if(cursor != null) {
-            if(cursor.getCount() > 0) {
+        if (cursor != null) {
+            if (cursor.getCount() > 0) {
                 exist = true;
             }
             cursor.close();
@@ -201,26 +227,28 @@ public class DataUtils {
     }
 
     public static HashSet<AppWidgetAttribute> getFolderNoteWidget(ContentResolver resolver, long folderId) {
+        // 使用hashset来存储不同窗口的id和type并且建立对应关系
         Cursor c = resolver.query(Notes.CONTENT_NOTE_URI,
                 new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE },
                 NoteColumns.PARENT_ID + "=?",
                 new String[] { String.valueOf(folderId) },
-                null); //查询条件：父ID是传入的folderId;
+                null); // 查询条件：父ID是传入的folderId;
 
         HashSet<AppWidgetAttribute> set = null;
         if (c != null) {
+            // 语句块：将app窗口的属性加入到HashSet中
             if (c.moveToFirst()) {
                 set = new HashSet<AppWidgetAttribute>();
                 do {
                     try {
                         AppWidgetAttribute widget = new AppWidgetAttribute();
-                        widget.widgetId = c.getInt(0);  //0对应的NoteColumns.WIDGET_ID
-                        widget.widgetType = c.getInt(1);  //1对应的NoteColumns.WIDGET_TYPE
+                        widget.widgetId = c.getInt(0); // 0对应的NoteColumns.WIDGET_ID
+                        widget.widgetType = c.getInt(1); // 1对应的NoteColumns.WIDGET_TYPE
                         set.add(widget);
                     } catch (IndexOutOfBoundsException e) {
                         Log.e(TAG, e.toString());
                     }
-                } while (c.moveToNext()); //查询下一条
+                } while (c.moveToNext()); // 查询下一条
             }
             c.close();
         }
@@ -228,13 +256,15 @@ public class DataUtils {
     }
 
     public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) {
+        // 通过笔记ID获取号码
         Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
-                new String [] { CallNote.PHONE_NUMBER },
+                new String[] { CallNote.PHONE_NUMBER },
                 CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?",
-                new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
-                null);
+                new String[] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE },
+                null);// 新建字符列表
 
         if (cursor != null && cursor.moveToFirst()) {
+            // 语句块： 获取电话号码，并处理异常。
             try {
                 return cursor.getString(0);
             } catch (IndexOutOfBoundsException e) {
@@ -247,18 +277,19 @@ public class DataUtils {
     }
 
     public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) {
+        // 同样的，通过映射关系，通过号码和日期获取ID
         Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI,
-                new String [] { CallNote.NOTE_ID },
+                new String[] { CallNote.NOTE_ID },
                 CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL("
                         + CallNote.PHONE_NUMBER + ",?)",
-                new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
+                new String[] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber },
                 null);
-        //通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值）
+        // 通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值）
 
         if (cursor != null) {
             if (cursor.moveToFirst()) {
                 try {
-                    return cursor.getLong(0); //0对应的CallNote.NOTE_ID
+                    return cursor.getLong(0); // 0对应的CallNote.NOTE_ID
                 } catch (IndexOutOfBoundsException e) {
                     Log.e(TAG, "Get call note id fails " + e.toString());
                 }
@@ -269,11 +300,12 @@ public class DataUtils {
     }
 
     public static String getSnippetById(ContentResolver resolver, long noteId) {
+        // 按ID获取片段
         Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI,
-                new String [] { NoteColumns.SNIPPET },
+                new String[] { NoteColumns.SNIPPET },
                 NoteColumns.ID + "=?",
-                new String [] { String.valueOf(noteId)},
-                null);//查询条件：noteId
+                new String[] { String.valueOf(noteId) },
+                null);// 查询条件：noteId
 
         if (cursor != null) {
             String snippet = "";
@@ -284,8 +316,11 @@ public class DataUtils {
             return snippet;
         }
         throw new IllegalArgumentException("Note is not found with id: " + noteId);
+        //1. IllegalArgumentException是非法传参异常，也就是参数传的类型冲突，属于RunTimeException运行时异常
     }
-    public static String getFormattedSnippet(String snippet) {  //对字符串进行格式处理，将字符串两头的空格去掉，同时将换行符去掉
+
+    public static String getFormattedSnippet(String snippet) { // 对字符串进行格式处理，将字符串两头的空格去掉，同时将换行符去掉
+        // 按ID获取片段
         if (snippet != null) {
             snippet = snippet.trim();
             int index = snippet.indexOf('\n');
@@ -296,4 +331,4 @@ public class DataUtils {
         return snippet;
     }
 
-}
+}
\ No newline at end of file
diff --git a/doc/成员代码分析/jbc/GTaskManager.java b/doc/成员代码分析/jbc/GTaskManager.java
index aaceb47..1b24acb 100644
--- a/doc/成员代码分析/jbc/GTaskManager.java
+++ b/doc/成员代码分析/jbc/GTaskManager.java
@@ -17,38 +17,11 @@
 package net.micode.notes.gtask.remote;
 
 import android.app.Activity;
-import android.content.ContentResolver;
-import android.content.ContentUris;
-import android.content.ContentValues;
+import android.app.Service;
 import android.content.Context;
-import android.database.Cursor;
-import android.util.Log;
-
-import net.micode.notes.R;
-import net.micode.notes.data.Notes;
-import net.micode.notes.data.Notes.DataColumns;
-import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.gtask.data.MetaData;
-import net.micode.notes.gtask.data.Node;
-import net.micode.notes.gtask.data.SqlNote;
-import net.micode.notes.gtask.data.Task;
-import net.micode.notes.gtask.data.TaskList;
-import net.micode.notes.gtask.exception.ActionFailureException;
-import net.micode.notes.gtask.exception.NetworkFailureException;
-import net.micode.notes.tool.DataUtils;
-import net.micode.notes.tool.GTaskStringUtils;
-
-import org.json.JSONArray;
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Map;
-
-
-
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.IBinder;
 public class GTaskManager {
     private static final String TAG = GTaskManager.class.getSimpleName();
     public static final int STATE_SUCCESS = 0;
@@ -767,7 +740,7 @@ public class GTaskManager {
 
         // update remotely
         node.setContentByLocalJSON(sqlNote.getContent());
-        GTaskClient.getInstance().addUpdateNode(node);                                //GTaskClient用途为从本地登陆远端服务器
+        GTaskClient.getInstance().addUpdateNode(node);                                //GTaskClient用途为从本地登陆远端服务器 
 
         // update meta
         updateRemoteMeta(node.getGid(), sqlNote);
diff --git a/doc/成员代码分析/jbc/GTaskStringUtils.java b/doc/成员代码分析/jbc/GTaskStringUtils.java
index 7988601..5ea2685 100644
--- a/doc/成员代码分析/jbc/GTaskStringUtils.java
+++ b/doc/成员代码分析/jbc/GTaskStringUtils.java
@@ -1,53 +1,36 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package net.micode.notes.tool;
-
 //简介：定义了很多的静态字符串，目的就是为了提供jsonObject中相应字符串的"key"。把这些静态的定义单独写到了一个类里面，这是非常好的编程规范
+package net.micode.notes.tool;
 
 //这个类就是定义了一堆static string，实际就是为jsonObject提供Key，把这些定义全部写到一个类里，方便查看管理，是一个非常好的编程习惯
 public class GTaskStringUtils {
 
-    public final static String GTASK_JSON_ACTION_ID = "action_id";
+    public final static String GTASK_JSON_ACTION_ID = "action_id";// 行动ID
 
-    public final static String GTASK_JSON_ACTION_LIST = "action_list";
+    public final static String GTASK_JSON_ACTION_LIST = "action_list";// 任务列表
 
-    public final static String GTASK_JSON_ACTION_TYPE = "action_type";
+    public final static String GTASK_JSON_ACTION_TYPE = "action_type";// 任务类型
 
-    public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create";
+    public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create";// 新建
 
     public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all";
 
-    public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move";
+    public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move";// 移动
 
     public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update";
 
     public final static String GTASK_JSON_CREATOR_ID = "creator_id";
 
-    public final static String GTASK_JSON_CHILD_ENTITY = "child_entity";
+    public final static String GTASK_JSON_CHILD_ENTITY = "child_entity";// 95.子实体
 
-    public final static String GTASK_JSON_CLIENT_VERSION = "client_version";
+    public final static String GTASK_JSON_CLIENT_VERSION = "client_version";// 客户端
 
     public final static String GTASK_JSON_COMPLETED = "completed";
 
-    public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id";
+    public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id";// 当前列表位置
 
     public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id";
 
-    public final static String GTASK_JSON_DELETED = "deleted";
+    public final static String GTASK_JSON_DELETED = "deleted";// 删除
 
     public final static String GTASK_JSON_DEST_LIST = "dest_list";
 
@@ -63,7 +46,7 @@ public class GTaskStringUtils {
 
     public final static String GTASK_JSON_ID = "id";
 
-    public final static String GTASK_JSON_INDEX = "index";
+    public final static String GTASK_JSON_INDEX = "index";// 索引
 
     public final static String GTASK_JSON_LAST_MODIFIED = "last_modified";
 
@@ -109,8 +92,8 @@ public class GTaskStringUtils {
 
     public final static String META_HEAD_NOTE = "meta_note";
 
-    public final static String META_HEAD_DATA = "meta_data";
+    public final static String META_HEAD_DATA = "meta_data";// 数据
 
     public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE";
 
-}
+}
\ No newline at end of file
diff --git a/doc/成员代码分析/jbc/Note.java b/doc/成员代码分析/jbc/Note.java
index 345f47b..a20cc8e 100644
--- a/doc/成员代码分析/jbc/Note.java
+++ b/doc/成员代码分析/jbc/Note.java
@@ -15,30 +15,32 @@
  */
 
 package net.micode.notes.model;
-import android.content.ContentProviderOperation;//批量的更新、插入、删除数据。
-import android.content.ContentProviderResult;//操作的结果
-import android.content.ContentUris;//用于添加和获取Uri后面的ID
-import android.content.ContentValues;//一种用来存储基本数据类型数据的存储机制
-import android.content.Context;//需要用该类来弄清楚调用者的实例
-import android.content.OperationApplicationException;//操作应用程序容错
-import android.net.Uri;//表示待操作的数据
-import android.os.RemoteException;//远程容错
-import android.util.Log;//输出日志，比如说出错、警告等
+
+import android.content.ContentProviderOperation;//更新、插入、删除数据
+import android.content.ContentProviderResult;
+import android.content.ContentUris;
+import android.content.ContentValues;//存储基本数据类型数据
+import android.content.Context;
+import android.content.OperationApplicationException;//操作数据容错
+import android.net.Uri;
+import android.os.RemoteException;
+import android.util.Log;
 
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.CallNote;
-import net.micode.notes.data.Notes.DataColumns;
+import net.micode.notes.data.Notes.DataColumns;//小米便签数据处理操作（数据栏）
 import net.micode.notes.data.Notes.NoteColumns;
-import net.micode.notes.data.Notes.TextNote;
+import net.micode.notes.data.Notes.TextNote;//小米便签数据处理操作（文本操作）
 
 import java.util.ArrayList;
 
-
 public class Note {
-    //   private ContentValues mNoteDiffValues;
-    ContentValues mNoteDiffValues;//
+    // 这个类是用来刻画单个Note的
+    // private ContentValues mNoteDiffValues;
+    ContentValues mNoteDiffValues;
+    // ContentValues是用于给其他应用调用小米便签的内容的共享数据
     private NoteData mNoteData;
-    private static final String TAG = "Note";
+    private static final String TAG = "Note";// 软件的名称
 
     /**
      * Create a new note id for adding a new note to databases
@@ -46,24 +48,32 @@ public class Note {
     public static synchronized long getNewNoteId(Context context, long folderId) {
         // Create a new note in the database
         ContentValues values = new ContentValues();
+        // Create a new note in the database
         long createdTime = System.currentTimeMillis();
+        // 读取当前系统时间
         values.put(NoteColumns.CREATED_DATE, createdTime);
+        // 将创建时间和修改时间都更改为当前系统时间
         values.put(NoteColumns.MODIFIED_DATE, createdTime);
+        // 更改时间
         values.put(NoteColumns.TYPE, Notes.TYPE_NOTE);
+        // 便签类型
         values.put(NoteColumns.LOCAL_MODIFIED, 1);
-        values.put(NoteColumns.PARENT_ID, folderId);//将数据写入数据库表格
+        values.put(NoteColumns.PARENT_ID, folderId);// 将数据写入数据库表格
         Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values);
-        //ContentResolver()主要是实现外部应用对ContentProvider中的数据
-        //进行添加、删除、修改和查询操作
+        // ContentResolver()主要是实现外部应用对ContentProvider中的数据
+        // 进行添加、删除、修改和查询操作
         long noteId = 0;
         try {
             noteId = Long.valueOf(uri.getPathSegments().get(1));
+            // 获取便签的id
         } catch (NumberFormatException e) {
             Log.e(TAG, "Get note id error :" + e.toString());
+            // 获取id错误
             noteId = 0;
-        }//try-catch异常处理
+        } // try-catch异常处理
         if (noteId == -1) {
             throw new IllegalStateException("Wrong note id:" + noteId);
+            // 非法状态时返回出错便签编号
         }
         return noteId;
     }
@@ -71,37 +81,37 @@ public class Note {
     public Note() {
         mNoteDiffValues = new ContentValues();
         mNoteData = new NoteData();
-    }//定义两个变量用来存储便签的数据，一个是存储便签属性、一个是存储便签内容
+    }// 定义两个变量用来存储便签的数据，一个是存储便签属性、一个是存储便签内容
 
     public void setNoteValue(String key, String value) {
         mNoteDiffValues.put(key, value);
         mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
         mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
-    }//设置数据库表格的标签属性数据
+    }// 设置数据库表格的标签属性数据
 
     public void setTextData(String key, String value) {
         mNoteData.setTextData(key, value);
-    }//设置数据库表格的标签文本内容的数据
+    }// 设置数据库表格的标签文本内容的数据
 
     public void setTextDataId(long id) {
         mNoteData.setTextDataId(id);
-    }//设置文本数据的ID
+    }// 设置文本数据的ID
 
     public long getTextDataId() {
         return mNoteData.mTextDataId;
-    }//得到文本数据的ID
+    }// 得到文本数据的ID
 
     public void setCallDataId(long id) {
         mNoteData.setCallDataId(id);
-    }//设置电话号码数据的ID
+    }// 设置电话号码数据的ID
 
     public void setCallData(String key, String value) {
         mNoteData.setCallData(key, value);
-    }//得到电话号码数据的ID
+    }// 得到电话号码数据的ID
 
     public boolean isLocalModified() {
         return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified();
-    }//判断是否是本地修改
+    }// 判断是否是本地修改
 
     public boolean syncNote(Context context, long noteId) {
         if (noteId <= 0) {
@@ -113,8 +123,10 @@ public class Note {
         }
 
         /**
-         * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and
-         * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the
+         * In theory, once data changed, the note should be updated on
+         * {@link NoteColumns#LOCAL_MODIFIED} and
+         * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails,
+         * we also update the
          * note data info
          */
         if (context.getContentResolver().update(
@@ -124,34 +136,36 @@ public class Note {
             // Do not return, fall through
         }
         mNoteDiffValues.clear();
-
+        // 初始化便签特征值
         if (mNoteData.isLocalModified()
                 && (mNoteData.pushIntoContentResolver(context, noteId) == null)) {
+            // 如果向内容接收者推送上下文失败，则返回错误
             return false;
         }
 
         return true;
-    }//判断数据是否同步
+    }// 判断数据是否同步
 
-    private class NoteData {//定义一个基本的便签内容的数据类，主要包含文本数据和电话号码数据
+    private class NoteData {// 定义一个基本的便签内容的数据类，主要包含文本数据和电话号码数据
         private long mTextDataId;
 
-        private ContentValues mTextDataValues;//文本数据
+        private ContentValues mTextDataValues;// 文本数据
 
         private long mCallDataId;
 
-        private ContentValues mCallDataValues;//电话号码数据
+        private ContentValues mCallDataValues;// 电话号码数据
 
         private static final String TAG = "NoteData";
 
         public NoteData() {
+            // 定义一个基本的便签内容的数据类，主要包含文本数据和电话号码数据
             mTextDataValues = new ContentValues();
             mCallDataValues = new ContentValues();
             mTextDataId = 0;
             mCallDataId = 0;
         }
 
-        //下面是上述几个函数的具体实现
+        // 下面是上述几个函数的具体实现
         boolean isLocalModified() {
             return mTextDataValues.size() > 0 || mCallDataValues.size() > 0;
         }
@@ -163,97 +177,115 @@ public class Note {
             mTextDataId = id;
         }
 
-        void setCallDataId(long id) {
+        void setCallDataId(long id) {// 设定文本数据id
             if (id <= 0) {
                 throw new IllegalArgumentException("Call data id should larger than 0");
+                // id保证大于0
             }
             mCallDataId = id;
         }
 
+        // 设置电话号码对应的id
         void setCallData(String key, String value) {
             mCallDataValues.put(key, value);
             mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            // 系统修改时间
             mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
         }
 
+        // 设置文本数据
         void setTextData(String key, String value) {
             mTextDataValues.put(key, value);
             mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1);
+            // 设置修改时间为当前系统时间
             mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis());
         }
 
-        //下面函数的作用是将新的数据通过Uri的操作存储到数据库
+        // 下面函数的作用是将新的数据通过Uri的操作存储到数据库
         Uri pushIntoContentResolver(Context context, long noteId) {
             /**
              * Check for safety
              */
             if (noteId <= 0) {
                 throw new IllegalArgumentException("Wrong note id:" + noteId);
-            }//判断数据是否合法
+            } // 判断数据是否合法
 
             ArrayList<ContentProviderOperation> operationList = new ArrayList<ContentProviderOperation>();
-            ContentProviderOperation.Builder builder = null;//数据库的操作列表
+            ContentProviderOperation.Builder builder = null;// 数据库的操作列表
 
             if (mTextDataValues.size() > 0) {
-                mTextDataValues.put(DataColumns.NOTE_ID, noteId);
+                // 把文本数据存入DataColumns
+                mTextDataValues.put(DataColumns.NOTE_ID, noteId);// 设定文本数据的属性
                 if (mTextDataId == 0) {
                     mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE);
+                    // MIME：MIME(MultipurposeInternet Mail Extensions)多用途互联网邮件扩展类型。
+                    // 是设定某种扩展名的文件用一种应用程序来打开的方式类型，
+                    // 当该扩展名文件被访问的时候，浏览器会自动使用指定应用程序来打开。
+                    // 多用于指定一些客户端自定义的文件名，以及一些媒体文件打开方式。
                     Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
                             mTextDataValues);
-                    try {
+                    try {// 尝试重新给它设置id
                         setTextDataId(Long.valueOf(uri.getPathSegments().get(1)));
                     } catch (NumberFormatException e) {
                         Log.e(TAG, "Insert new text data fail with noteId" + noteId);
+                        // 插入数据失败
                         mTextDataValues.clear();
+                        // 把电话号码数据存入DataColumns
                         return null;
                     }
-                } else {
+                } else {// 内容提供者的更新操作，因为这个uri对应的数据是已经存在的，所以不需要向上面一样新建，而是更新即可
                     builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
-                            Notes.CONTENT_DATA_URI, mTextDataId));
+                            Notes.CONTENT_DATA_URI, mTextDataId));// 语句： 将uri和id合并后，更新
                     builder.withValues(mTextDataValues);
                     operationList.add(builder.build());
                 }
                 mTextDataValues.clear();
-            }//把文本数据存入DataColumns
+            } // 把文本数据存入DataColumns
 
-            if (mCallDataValues.size() > 0) {
-                mCallDataValues.put(DataColumns.NOTE_ID, noteId);
+            if (mCallDataValues.size() > 0) {// 对于电话号码的数据也是和文本数据一样的同步处理
+                mCallDataValues.put(DataColumns.NOTE_ID, noteId);// 写入noteID
                 if (mCallDataId == 0) {
+                    // 将电话号码的id设定为uri提供的id
                     mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE);
                     Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI,
                             mCallDataValues);
-                    try {
+                    try {// 异常处理
                         setCallDataId(Long.valueOf(uri.getPathSegments().get(1)));
+                        // 异常处理，返回1
                     } catch (NumberFormatException e) {
                         Log.e(TAG, "Insert new call data fail with noteId" + noteId);
+                        // 插入电话号码数据失败
                         mCallDataValues.clear();
                         return null;
                     }
                 } else {
                     builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId(
                             Notes.CONTENT_DATA_URI, mCallDataId));
+                    // 内容提供者的更新操作，这个uri对应的数据是已经存在的，因此进行更新即可
                     builder.withValues(mCallDataValues);
                     operationList.add(builder.build());
                 }
                 mCallDataValues.clear();
-            }//把电话号码数据存入DataColumns
+            } // 把电话号码数据存入DataColumns
 
             if (operationList.size() > 0) {
+                // 存储过程中如果遇到异常，通过如下进行处理
                 try {
+                    // Android源码中对通讯录的操作，应用端使用ContentProvider提供的applyBatch，进行批量处理通讯录的联系人入库
                     ContentProviderResult[] results = context.getContentResolver().applyBatch(
                             Notes.AUTHORITY, operationList);
                     return (results == null || results.length == 0 || results[0] == null) ? null
                             : ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId);
                 } catch (RemoteException e) {
                     Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
+                    // 异常日志
                     return null;
                 } catch (OperationApplicationException e) {
                     Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage()));
                     return null;
                 }
-            }//存储过程中的异常处理
+            } // 存储过程中的异常处理
             return null;
         }
     }
 }
-
diff --git a/doc/成员代码分析/jbc/WorkingNote.java b/doc/成员代码分析/jbc/WorkingNote.java
index 6e3acf2..3575008 100644
--- a/doc/成员代码分析/jbc/WorkingNote.java
+++ b/doc/成员代码分析/jbc/WorkingNote.java
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
+ *当前活动便签项
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -16,14 +16,15 @@
 
 package net.micode.notes.model;
 
-import android.appwidget.AppWidgetManager;
+//在model包中
+import android.appwidget.AppWidgetManager;//以下下为引用的一些库文件
 import android.content.ContentUris;
 import android.content.Context;
-import android.database.Cursor;
+import android.database.Cursor;//游标的使用
 import android.text.TextUtils;
 import android.util.Log;
 
-import net.micode.notes.data.Notes;
+import net.micode.notes.data.Notes;//小米便签操作的整体属性
 import net.micode.notes.data.Notes.CallNote;
 import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.DataConstants;
@@ -31,9 +32,10 @@ import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.data.Notes.TextNote;
 import net.micode.notes.tool.ResourceParser.NoteBgResources;
 
-
 public class WorkingNote {
+    // 申明WorkingNote类,创建小米便签的主要类，包括创建空便签，保存便签，加载小米便签内容，和设置小米便签的一些小部件之类的操作
     // Note for the working note
+    // 下列定义了一系列变量用于设置便签的不同属性以及相关功能
     private Note mNote;
     // Note Id
     private long mNoteId;
@@ -41,23 +43,31 @@ public class WorkingNote {
     private String mContent;
     // Note mode
     private int mMode;
-
+    // 是否是清单模式
     private long mAlertDate;
+    // 设置闹钟时间
     private long mModifiedDate;
+    // 最后修改时间
     private int mBgColorId;
+    // 背景颜色ID
     private int mWidgetId;
+    // 控件ID
     private int mWidgetType;
+    // 控件类型，有Notes.TYPE_WIDGET_INVALIDE(-1)、TYPE_WIDGET_2X(0)、TYPE_WIDGET_4X(1)三种
     private long mFolderId;
+    //// 便签文件夹ID
     private Context mContext;
-
+    // 当前便签的上下文
     private static final String TAG = "WorkingNote";
-
+    // .声明 DATA_PROJECTION字符串数组
     private boolean mIsDeleted;
-
+    // 是否应该被删除
     private NoteSettingChangedListener mNoteSettingStatusListener;
-
+    // 一个用来监听设置是否有变化的接口
     // 声明 DATA_PROJECTION字符串数组
     public static final String[] DATA_PROJECTION = new String[] {
+
+            // 声明 NOTE_PROJECTION字符串数组
             DataColumns.ID,
             DataColumns.CONTENT,
             DataColumns.MIME_TYPE,
@@ -65,10 +75,11 @@ public class WorkingNote {
             DataColumns.DATA2,
             DataColumns.DATA3,
             DataColumns.DATA4,
-    };
+    };// 声明各个常量
 
     // 声明 NOTE_PROJECTION字符串数组
     public static final String[] NOTE_PROJECTION = new String[] {
+            // 保存便签自身属性的字符串数组
             NoteColumns.PARENT_ID,
             NoteColumns.ALERTED_DATE,
             NoteColumns.BG_COLOR_ID,
@@ -78,52 +89,74 @@ public class WorkingNote {
     };
 
     private static final int DATA_ID_COLUMN = 0;
+    // 规定每一个数据类型在哪一行
     private static final int DATA_CONTENT_COLUMN = 1;
     private static final int DATA_MIME_TYPE_COLUMN = 2;
     private static final int DATA_MODE_COLUMN = 3;
     private static final int NOTE_PARENT_ID_COLUMN = 0;
+    // 以下6个常量表示便签投影的0-5列
     private static final int NOTE_ALERTED_DATE_COLUMN = 1;
     private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
     private static final int NOTE_WIDGET_ID_COLUMN = 3;
     private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
     private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
 
+    /*
+     * 作用：根据上下文和当前文件夹的ID，初始化当前编辑中的便签
+     * 实现：设置便签有关属性的信息的初始值
+     * 参数：@context：当前活动的上下文
+     * 
+     * @folderId：当前文件夹的ID
+     */
     // New note construct
     public WorkingNote(Context context, long folderId) {
         mContext = context;
         mAlertDate = 0;
         mModifiedDate = System.currentTimeMillis();
+        // 系统现在的时间,时间的表达格式为当前计算机时间和GMT时间(格林威治时间)1970年1月1号0时0分0秒所差的毫秒数
         mFolderId = folderId;
+        // 默认最后一次修改日期为当前时间
         mNote = new Note();
+        // 加载一个已存在的便签
         mNoteId = 0;
         mIsDeleted = false;
+        // 没有提供id所以默认为0
         mMode = 0;
         mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
+        // 默认是不可见
     }
 
     // WorkingNote的构造函数
     // Existing note construct
     private WorkingNote(Context context, long noteId, long folderId) {
+        // 加载Note
+        // 该方法初始化类里的各项变量
         mContext = context;
+        // 调用query函数找到第一个条目
         mNoteId = noteId;
         mFolderId = folderId;
         mIsDeleted = false;
         mNote = new Note();
         loadNote();
+        // 加载便签
     }
 
     // 加载Note
     // 通过数据库调用query函数找到第一个条目
     private void loadNote() {
+        // 加载已有的便签
         Cursor cursor = mContext.getContentResolver().query(
+                // 存在第一个条目
                 ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
                 null, null);
 
         // 若存在，储存相应信息
         if (cursor != null) {
+            // 通过数据库调用query函数找到第一个条目
             if (cursor.moveToFirst()) {
+                // moveToFirst：will return false if the cursor is empty
                 mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
-                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
+                mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);// 关闭cursor游标
                 mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
                 mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
                 mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
@@ -159,7 +192,7 @@ public class WorkingNote {
                     } else {
                         Log.d(TAG, "Wrong note type with type:" + type);
                     }
-                } while (cursor.moveToNext());//查阅所有项,直到为空
+                } while (cursor.moveToNext());// 查阅所有项,直到为空
             }
             cursor.close();
         } else {
@@ -171,7 +204,7 @@ public class WorkingNote {
     // 创建空的Note
     // 传参：context，文件夹id，widget，背景颜色
     public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
-                                              int widgetType, int defaultBgColorId) {
+            int widgetType, int defaultBgColorId) {
         WorkingNote note = new WorkingNote(context, folderId);
         // 设定相关属性
         note.setBgColorId(defaultBgColorId);
@@ -186,7 +219,7 @@ public class WorkingNote {
 
     // 保存Note
     public synchronized boolean saveNote() {
-        if (isWorthSaving()) { //是否值得保存
+        if (isWorthSaving()) { // 是否值得保存
             if (!existInDatabase()) { // 是否存在数据库中
                 if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
                     Log.e(TAG, "Create new note fail with id:" + mNoteId);
@@ -226,7 +259,6 @@ public class WorkingNote {
         }
     }
 
-
     // 设置mNoteSettingStatusListener
     public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
         mNoteSettingStatusListener = l;
@@ -257,7 +289,7 @@ public class WorkingNote {
 
     // 设定背景颜色
     public void setBgColorId(int id) {
-        if (id != mBgColorId) { //设定条件 id != mBgColorId
+        if (id != mBgColorId) { // 设定条件 id != mBgColorId
             mBgColorId = id;
             if (mNoteSettingStatusListener != null) {
                 mNoteSettingStatusListener.onBackgroundColorChanged();
@@ -269,7 +301,7 @@ public class WorkingNote {
     // 设定检查列表模式
     // 参数：mode
     public void setCheckListMode(int mode) {
-        if (mMode != mode) { //设定条件 mMode != mode
+        if (mMode != mode) { // 设定条件 mMode != mode
             if (mNoteSettingStatusListener != null) {
                 mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
             }
@@ -278,11 +310,10 @@ public class WorkingNote {
         }
     }
 
-
     // 设定WidgetType
     // 参数：type
     public void setWidgetType(int type) {
-        if (type != mWidgetType) {//设定条件 type != mWidgetType
+        if (type != mWidgetType) {// 设定条件 type != mWidgetType
             mWidgetType = type;
             mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
             // 调用Note的setNoteValue方法更改WidgetType
@@ -292,7 +323,7 @@ public class WorkingNote {
     // 设定WidgetId
     // 参数：id
     public void setWidgetId(int id) {
-        if (id != mWidgetId) {//设定条件 id != mWidgetId
+        if (id != mWidgetId) {// 设定条件 id != mWidgetId
             mWidgetId = id;
             mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
             // 调用Note的setNoteValue方法更改WidgetId
@@ -302,7 +333,7 @@ public class WorkingNote {
     // 设定WorkingTex
     // 参数：更改的text
     public void setWorkingText(String text) {
-        if (!TextUtils.equals(mContent, text)) {//设定条件 mContent, text内容不同
+        if (!TextUtils.equals(mContent, text)) {// 设定条件 mContent, text内容不同
             mContent = text;
             mNote.setTextData(DataColumns.CONTENT, mContent);
             // 调用Note的setTextData方法更改WorkingText
@@ -398,9 +429,10 @@ public class WorkingNote {
 
         /**
          * Call when switch between check list mode and normal mode
+         * 
          * @param oldMode is previous mode before change
          * @param newMode is new mode
          */
         void onCheckListModeChanged(int oldMode, int newMode);
     }
-}
\ No newline at end of file
+}
diff --git a/doc/成员代码分析/jhw/Contact.java b/doc/成员代码分析/jhw/Contact.java
index 199bb2a..41aad99 100644
--- a/doc/成员代码分析/jhw/Contact.java
+++ b/doc/成员代码分析/jhw/Contact.java
@@ -1,66 +1,96 @@
+/*
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//表示在哪个包，相应的依赖关系
 package net.micode.notes.data;
+//导入android自带的Context类
 
 import android.content.Context;
-
+//从数据库导入cursor，表示数据库中的每行数据下标
 import android.database.Cursor;
+//android系统应用开发框架功能之一，提供访问android内容提供者的类。导入里面联系人的号码，这个是需要CommonDataKinds提供权限
 import android.provider.ContactsContract.CommonDataKinds.Phone;
+//导入Data，包含通讯录中的每个人的全部信息。
 import android.provider.ContactsContract.Data;
+//1.Telephony 服务为电话应用程序编程接口 (TAPI) 提供支持。通过使用此硬件，您可以通过直接连接到本地计算机、电话线、LAN、WAN 和 Internet 以进行通信。提供处理Phone Number的各种应用工具
 import android.telephony.PhoneNumberUtils;
+//安卓的日志类工具，方便后面调试使用
 import android.util.Log;
-
+//引用了STL里面的HashMap，用来映射联系人和电话号码
 import java.util.HashMap;
+
 //change
-public class Contact { //联系人
+public class Contact { //联系人类
     private static HashMap<String, String> sContactCache;
+    //写入Cache，而创建的一个成员变量
     private static final String TAG = "Contact";
-
-    // 定义字符串CALLER_ID_SELECTION
+    //在日志中查看由哪个类打印的日志
+    // 定义字符串CALLER_ID_SELECTION，表示为每个用户存储了相应的信息，当插入新的用户时，系统会检查系统中是否已存在用户
     private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL("
 
-            + Phone.NUMBER
-            + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
-            + " AND " + Data.RAW_CONTACT_ID + " IN "
-            + "(SELECT raw_contact_id "
-            + " FROM phone_lookup"
-            + " WHERE min_match = '+')";
+            + Phone.NUMBER + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + " AND " + Data.RAW_CONTACT_ID + " IN " + "(SELECT raw_contact_id " + " FROM phone_lookup" + " WHERE min_match = '+')";
 
     // 获取联系人
+
+    /**
+     * 本方法用于根据传入参数获取联系人信息
+     *
+     * @param context
+     * @param phoneNumber
+     * @return
+     */
     public static String getContact(Context context, String phoneNumber) {
-        if(sContactCache == null) {
+//判断联系人cache是否为空，如果为空，则初始化一个cache
+        if (sContactCache == null) {
             sContactCache = new HashMap<String, String>();
         }
-
-        // 查找HashMap中是否已有phoneNumber信息
-        if(sContactCache.containsKey(phoneNumber)) {
+        // 查找HashMap中是否已有对应联系人phoneNumber信息
+        if (sContactCache.containsKey(phoneNumber)) {
             return sContactCache.get(phoneNumber);
         }
-
-        String selection = CALLER_ID_SELECTION.replace("+",
-                PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
-        // 查找数据库中phoneNumber的信息
-        Cursor cursor = context.getContentResolver().query(
-                Data.CONTENT_URI,
-                new String [] { Phone.DISPLAY_NAME },
+        // 修改原先数据库语句Caller_ID_SELECTION，用函数形参phonenumber的后七位电话号码代替"+"
+        String selection = CALLER_ID_SELECTION.replace("+", PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
+        //从数据库中读取数据，query是查询方法。cursor类是对数据库的操作，获取整行的数据.Ressolver是对联系人内容的读取，其中provider提供了联系人数据
+        Cursor cursor = context.getContentResolver().query(Data.CONTENT_URI,//uri是区别provider的标志
+                new String[]{Phone.DISPLAY_NAME},
+                //该参数告诉provider要返回的内容，这里是要返回联系人的名字
                 selection,
-                new String[] { phoneNumber },
+                //该参数相当于数据库中where条件，筛选只拥有特定电话号码的信息
+                new String[]{phoneNumber},
+                //筛选条件，即参数phonenumber
                 null);
-
-        // 判定查询结果 
-        // moveToFirst()返回第一条
+               //设置查询是否按顺序排列，这里的意思是不按顺序排列
+/**
+ * 判断上面的查询是否查到相关信息，如果查询到将查询到的数据移动到第一行
+ * 如果没有查询到相关信息，就写入日志
+ */
         if (cursor != null && cursor.moveToFirst()) {
             try {
-                // 找到相关信息
+                // 获取联系人姓名，写入联系人缓存
                 String name = cursor.getString(0);
                 sContactCache.put(phoneNumber, name);
                 return name;
                 // 异常
             } catch (IndexOutOfBoundsException e) {
+                // 将异常信息写入日志
                 Log.e(TAG, " Cursor get string error " + e.toString());
                 return null;
             } finally {
                 cursor.close();
             }
-            // 未找到相关信息
+            // 未找到相关信息就写入日志
         } else {
             Log.d(TAG, "No contact matched with number:" + phoneNumber);
             return null;
diff --git a/doc/成员代码分析/jhw/MetaData.java b/doc/成员代码分析/jhw/MetaData.java
index 596429d..c5fd1af 100644
--- a/doc/成员代码分析/jhw/MetaData.java
+++ b/doc/成员代码分析/jhw/MetaData.java
@@ -24,7 +24,6 @@ import net.micode.notes.tool.GTaskStringUtils;
 import org.json.JSONException;
 import org.json.JSONObject;
 
-
 public class MetaData extends Task {
     /*
      * 功能描述：得到类的简写名称存入字符串TAG中
@@ -62,16 +61,14 @@ public class MetaData extends Task {
     }
     /*
      * 功能描述：判断当前数据是否为空，若为空则返回真即值得保存
-     * Made By CuiCan
      */
     @Override
     public boolean isWorthSaving() {
         return getNotes() != null;
     }
     /*
-     * 功能描述：使用远程json数据对象设置元数据内容
-     * 实现过程：调用父类Task中的setContentByRemoteJSON ()函数，并
-     * 参数注解：
+     * 功能描述：使用远程json数据对象设置元数据内容实现过程：
+     * 调用父类Task中的setContentByRemoteJSON ()函数，并参数注解：
      */
     @Override
     public void setContentByRemoteJSON(JSONObject js) {
@@ -79,6 +76,7 @@ public class MetaData extends Task {
         if (getNotes() != null) {
             try {
                 JSONObject metaInfo = new JSONObject(getNotes().trim());
+                //设置ID
                 mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
             } catch (JSONException e) {
                 Log.w(TAG, "failed to get related gid");
@@ -126,5 +124,4 @@ public class MetaData extends Task {
          */
     }
 
-
-}
+}
\ No newline at end of file
diff --git a/doc/成员代码分析/jhw/Notes.java b/doc/成员代码分析/jhw/Notes.java
index 7cf0140..d3a648e 100644
--- a/doc/成员代码分析/jhw/Notes.java
+++ b/doc/成员代码分析/jhw/Notes.java
@@ -1,16 +1,21 @@
+//表示在哪个包，依赖关系
 package net.micode.notes.data;
+//uri是统一资源标识符，涉及到安卓权限
 
-import android.content.ContentUris;
 import android.net.Uri;
-// Notes 类中定义了很多常量，这些常量大多是int型和string型
+
+//Notes 类中定义了很多常量，这些常量大多是int型和string型
 public class Notes {
-    public static final String AUTHORITY = "micode_notes";
+    // 定义了一个权限名，这里是为了符合Uri的格式而定义的
+    public static final
+    String AUTHORITY = "micode_notes";
+    //  设置标签，表示APP的名称是Notes
     public static final String TAG = "Notes";
 
     //以下三个常量对NoteColumns.TYPE的值进行设置时会用到
-    public static final int TYPE_NOTE     = 0;
-    public static final int TYPE_FOLDER   = 1;
-    public static final int TYPE_SYSTEM   = 2;
+    public static final int TYPE_NOTE = 0;
+    public static final int TYPE_FOLDER = 1;
+    public static final int TYPE_SYSTEM = 2;
 
     /**
      * Following IDs are system folders' identifiers
@@ -18,11 +23,15 @@ public class Notes {
      * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
      * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
      */
+//垃圾文件夹
     public static final int ID_ROOT_FOLDER = 0;
+    //临时警报
     public static final int ID_TEMPARAY_FOLDER = -1;
+    //通话记录文件夹
     public static final int ID_CALL_RECORD_FOLDER = -2;
+    //垃圾文件夹3
     public static final int ID_TRASH_FOLER = -3;
-
+//定义string字符串
     public static final String INTENT_EXTRA_ALERT_DATE =
 
             "net.micode.notes.alert_date";
@@ -41,11 +50,11 @@ public class Notes {
     public static final String INTENT_EXTRA_CALL_DATE =
 
             "net.micode.notes.call_date";
-
-    public static final int TYPE_WIDGET_INVALIDE      = -1;
-    public static final int TYPE_WIDGET_2X            = 0;
-    public static final int TYPE_WIDGET_4X            = 1;
-
+//定义查询便签和指针
+    public static final int TYPE_WIDGET_INVALIDE = -1;
+    public static final int TYPE_WIDGET_2X = 0;
+    public static final int TYPE_WIDGET_4X = 1;
+//DataContants类：存放textnotes和callnotes地址
     public static class DataConstants {
         public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
         public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
@@ -54,6 +63,7 @@ public class Notes {
     /**
      * Uri to query all notes and folders
      */
+//创建URI访问实例parse中的参数分三部分，scheme（访问资源的命名机制），authority（存放资源的主机名），path（资源自身的名称）
     public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" +
 
             AUTHORITY + "/note");//定义查询便签和文件夹的指针。
@@ -62,6 +72,7 @@ public class Notes {
 
     /**
      * Uri to query data
+     * 系统根据data查询所需的Uri常量
      */
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" +
 
@@ -79,17 +90,20 @@ public class Notes {
          * The parent's id for note or folder
          * <P> Type: INTEGER (long) </P>
          */
-        public static final String PARENT_ID = "parent_id";//为什么会有parent_id
+        //父节点的ID
+        public static final String PARENT_ID = "parent_id";
 
         /**
          * Created data for note or folder
          * <P> Type: INTEGER (long) </P>
+         * 创建时间
          */
         public static final String CREATED_DATE = "created_date";
 
         /**
          * Latest modified date
          * <P> Type: INTEGER (long) </P>
+         * 提醒时间
          */
         public static final String MODIFIED_DATE = "modified_date";
 
@@ -97,30 +111,35 @@ public class Notes {
         /**
          * Alert date
          * <P> Type: INTEGER (long) </P>
+         * 提醒时间
          */
         public static final String ALERTED_DATE = "alert_date";
 
         /**
          * Folder's name or text content of note
          * <P> Type: TEXT </P>
+         * 文件夹名字或文件内容
          */
         public static final String SNIPPET = "snippet";
 
         /**
          * Note's widget id
          * <P> Type: INTEGER (long) </P>
+         * 小部件ID
          */
         public static final String WIDGET_ID = "widget_id";
 
         /**
          * Note's widget type
          * <P> Type: INTEGER (long) </P>
+         * 小部件类型
          */
         public static final String WIDGET_TYPE = "widget_type";
 
         /**
          * Note's background color's id
          * <P> Type: INTEGER (long) </P>
+         * 背景颜色ID
          */
         public static final String BG_COLOR_ID = "bg_color_id";
 
@@ -128,48 +147,56 @@ public class Notes {
          * For text note, it doesn't has attachment, for multi-media
          * note, it has at least one attachment
          * <P> Type: INTEGER </P>
+         * 是否有附件
          */
         public static final String HAS_ATTACHMENT = "has_attachment";
 
         /**
          * Folder's count of notes
          * <P> Type: INTEGER (long) </P>
+         * 文件夹中标签的数量
          */
         public static final String NOTES_COUNT = "notes_count";
 
         /**
          * The file type: folder or note
          * <P> Type: INTEGER </P>
+         * 文件或者便签的类型
          */
         public static final String TYPE = "type";
 
         /**
          * The last sync id
          * <P> Type: INTEGER (long) </P>
+         * 最后一次同步的ID
          */
         public static final String SYNC_ID = "sync_id";//同步
 
         /**
          * Sign to indicate local modified or not
          * <P> Type: INTEGER </P>
+         * 标识本地是否修改
          */
         public static final String LOCAL_MODIFIED = "local_modified";
 
         /**
          * Original parent id before moving into temporary folder
          * <P> Type : INTEGER </P>
+         * 移动到当前文件夹之前的父文件夹ID
          */
         public static final String ORIGIN_PARENT_ID = "origin_parent_id";
 
         /**
          * The gtask id
          * <P> Type : TEXT </P>
+         * 后台任务ID
          */
         public static final String GTASK_ID = "gtask_id";
 
         /**
          * The version code
          * <P> Type : INTEGER (long) </P>
+         * 版本代号
          */
         public static final String VERSION = "version";
     }//这些常量主要是定义便签的属性的。
@@ -179,80 +206,93 @@ public class Notes {
         /**
          * The unique ID for a row
          * <P> Type: INTEGER (long) </P>
+         * 一行独立的便签ID
          */
         public static final String ID = "_id";
 
         /**
          * The MIME type of the item represented by this row.
          * <P> Type: Text </P>
+         * MIME类型能包含视频、图像、文本、音频、应用程序等数据
          */
         public static final String MIME_TYPE = "mime_type";
 
         /**
          * The reference id to note that this data belongs to
          * <P> Type: INTEGER (long) </P>
+         * 便签ID
          */
         public static final String NOTE_ID = "note_id";
 
         /**
          * Created data for note or folder
          * <P> Type: INTEGER (long) </P>
+         * 创建时间
          */
         public static final String CREATED_DATE = "created_date";
 
         /**
          * Latest modified date
          * <P> Type: INTEGER (long) </P>
+         * 最后的修改日期
          */
         public static final String MODIFIED_DATE = "modified_date";
 
         /**
          * Data's content
          * <P> Type: TEXT </P>
+         * 数据的内容
          */
         public static final String CONTENT = "content";
 
 
         /**
-         * Generic data column, the meaning is {@link #MIMETYPE} specific, 
-         used for
+         * Generic data column, the meaning is {@link #MIMETYPE} specific,
+         * <p>
+         * used for
          * integer data type
          * <P> Type: INTEGER </P>
          */
         public static final String DATA1 = "data1";
 
         /**
-         * Generic data column, the meaning is {@link #MIMETYPE} specific, 
-         used for
+         * Generic data column, the meaning is {@link #MIMETYPE} specific,
+         * <p>
+         * used for
          * integer data type
          * <P> Type: INTEGER </P>
          */
         public static final String DATA2 = "data2";
 
         /**
-         * Generic data column, the meaning is {@link #MIMETYPE} specific, 
-         used for
+         * Generic data column, the meaning is {@link #MIMETYPE} specific,
+         * <p>
+         * used for
          * TEXT data type
          * <P> Type: TEXT </P>
          */
         public static final String DATA3 = "data3";
 
         /**
-         * Generic data column, the meaning is {@link #MIMETYPE} specific, 
-         used for
+         * Generic data column, the meaning is {@link #MIMETYPE} specific,
+         * <p>
+         * used for
          * TEXT data type
          * <P> Type: TEXT </P>
          */
         public static final String DATA4 = "data4";
 
         /**
-         * Generic data column, the meaning is {@link #MIMETYPE} specific, 
-         used for
+         * Generic data column, the meaning is {@link #MIMETYPE} specific,
+         * <p>
+         * used for
          * TEXT data type
          * <P> Type: TEXT </P>
          */
         public static final String DATA5 = "data5";
     }//主要是定义存储便签内容数据的
+
+//文本数据（TextNote）通过关键字implements来实现接口，继承了DataColumns的所有定义常量
     public static final class TextNote implements DataColumns {
         /**
          * Mode to indicate the text in check list mode or not
@@ -269,12 +309,13 @@ public class Notes {
         public static final String CONTENT_ITEM_TYPE =
 
                 "vnd.android.cursor.item/text_note";
-
+// 访问该content_provider的URI，parse方法返回的是一个URI类型。通过这个uri可以访问一个网络上或者本地上的资源
         public static final Uri CONTENT_URI = Uri.parse("content://" +
 
                 AUTHORITY + "/text_note");
-    }//文本内容的数据结构
-
+    }
+    //文本内容的数据结构
+//TextNote作为DataColumns的子类，进行扩展，用于记录通话数据的表头
     public static final class CallNote implements DataColumns {
         /**
          * Call date for this record
diff --git a/doc/成员代码分析/jhw/NotesDatabaseHelper.java b/doc/成员代码分析/jhw/NotesDatabaseHelper.java
index aa5a860..9eb4049 100644
--- a/doc/成员代码分析/jhw/NotesDatabaseHelper.java
+++ b/doc/成员代码分析/jhw/NotesDatabaseHelper.java
@@ -1,205 +1,130 @@
+//数据库操作，SQLOpenhelper,对一些note和文件进行数据库的操作。比如删除文件后，将文件里的note也相应删除
 package net.micode.notes.data;
-
-import android.content.ContentValues;//就是用于保存一些数据（string boolean byte double float int long short ...）信息，这些信息可以被数据库操作时使用。
-import android.content.Context;//加载和访问资源。（android中主要是这两个功能，但是这里具体不清楚）
-import android.database.sqlite.SQLiteDatabase;//主要提供了对应于添加、删除、更新、查询的操作方法： insert()、delete()、update()和query()。配合content.values
-import android.database.sqlite.SQLiteOpenHelper;//用来管理数据的创建和版本更新
+//保存一些数据信息，这些数据可以被数据库操作
+
+import android.content.ContentValues;
+//加载和访问资源
+import android.content.Context;
+//主要提供了对应于添加、删除、更新、查询的操作
+import android.database.sqlite.SQLiteDatabase;
+//数据库的更新和创建
+import android.database.sqlite.SQLiteOpenHelper;
+//安卓日志类接口
 import android.util.Log;
-
+//导入Notes.java中的DataColumns, NoteColumns接口，和类DataConstants
 import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.DataConstants;
 import net.micode.notes.data.Notes.NoteColumns;
-//数据库操作，用SQLOpenhelper,对一些note和文件进行数据库的操作，比如删除文件后，将文件里的note也相应删除
 
+//继承于SQLiteOpenHelper的类NotesDatabaseHelper，用于实现对便签或者 文件的数据库操作，例如删除便签
 public class NotesDatabaseHelper extends SQLiteOpenHelper {
     private static final String DB_NAME = "note.db";
 
     private static final int DB_VERSION = 4;
 
-    public interface TABLE {    //接口，分成note和data，在后面的程序里分别使用过
+    public interface TABLE {
+        //接口，分成note和data，在后面的程序里分别使用过
         public static final String NOTE = "note";
 
         public static final String DATA = "data";
     }
 
+    //创建一个表格用来储存标签编号
     private static final String TAG = "NotesDatabaseHelper";
-
+    //实例化一个NoteDatabaseHelper
     private static NotesDatabaseHelper mInstance;
+    /**
+     * 当创建一个新的便签，就产生了各类关于便签的信息，
+     * 比如ID，父便签ID，背景颜色，创建日期等，
+     * 我们需要把这些信息放入数据库，这就是数据库的表头。
+     * 我们在下面定义的涉及操作的字符串，
+     * 全都是为了在之后执行db.execSQL("字符串")。
+     */
+    private static final String CREATE_NOTE_TABLE_SQL = "CREATE TABLE " + TABLE.NOTE + "(" + NoteColumns.ID + " INTEGER PRIMARY KEY," + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + ")";
 
-    private static final String CREATE_NOTE_TABLE_SQL =
-            "CREATE TABLE " + TABLE.NOTE + "(" +
-                    NoteColumns.ID + " INTEGER PRIMARY KEY," +
-                    NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
-                    NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
-                    NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
-                    NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
-                    NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
-                    NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
-                    ")";//数据库中需要存储的项目的名称，就相当于创建一个表格的表头的内容。
-
-    private static final String CREATE_DATA_TABLE_SQL =
-            "CREATE TABLE " + TABLE.DATA + "(" +
-                    DataColumns.ID + " INTEGER PRIMARY KEY," +
-                    DataColumns.MIME_TYPE + " TEXT NOT NULL," +
-                    DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
-                    NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
-                    NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
-                    DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
-                    DataColumns.DATA1 + " INTEGER," +
-                    DataColumns.DATA2 + " INTEGER," +
-                    DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
-                    DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
-                    DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
-                    ")";//和上面的功能一样，主要是存储的项目不同
-
-    private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
-            "CREATE INDEX IF NOT EXISTS note_id_index ON " +
-                    TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";//存储便签编号的一个数据表格
+    //大体同上，这里储存的是便签内容的信息，
+// 用这些信息作为数据库对便签内容存储的表头
+    private static final String CREATE_DATA_TABLE_SQL = "CREATE TABLE " + TABLE.DATA + "(" + DataColumns.ID + " INTEGER PRIMARY KEY," + DataColumns.MIME_TYPE + " TEXT NOT NULL," + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA1 + " INTEGER," + DataColumns.DATA2 + " INTEGER," + DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + ")";
+    //创建索引，名称为note_id_index，在TABLE.DATA表格的DataCloumns.NOTE_ID列
+    private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = "CREATE INDEX IF NOT EXISTS note_id_index ON " + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";//存储便签编号的一个数据表格
 
     /**
      * Increase folder's note count when move note to the folder
+     * 增加文件夹便签数量，当移动一个便签进入该文件夹后，
+     * 之后在db.execSQL(字符串)中用到，
+     * 启动自定义的数据库update触发器，有相关的一系列数据库操作。
      */
-    private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
-            "CREATE TRIGGER increase_folder_count_on_update "+
-                    " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
-                    " BEGIN " +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
-                    "  WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
-                    " END";//在文件夹中移入一个Note之后需要更改的数据的表格。
+    private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = "CREATE TRIGGER increase_folder_count_on_update " + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + " BEGIN " + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + "  WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + " END";
 
     /**
      * Decrease folder's note count when move note from folder
+     * 同上，从文件夹移除便签，文件夹便签数量减1，
+     * 以后在db.execSQL(字符串)中用到，
+     * 启动自定义的数据库updata触发器，附带相关的一系列操作
      */
-    private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
-            "CREATE TRIGGER decrease_folder_count_on_update " +
-                    " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
-                    " BEGIN " +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
-                    "  WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
-                    "  AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
-                    " END";//在文件夹中移出一个Note之后需要更改的数据的表格。
+    private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = "CREATE TRIGGER decrease_folder_count_on_update " + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + " BEGIN " + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + "  WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + "  AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + " END";
 
     /**
      * Increase folder's note count when insert new note to the folder
+     * 文件夹中创建新便签，文件夹便签数量+1，
+     * 启动自定义的数据库insert触发器，附带相关的一系列操作
      */
-    private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
-            "CREATE TRIGGER increase_folder_count_on_insert " +
-                    " AFTER INSERT ON " + TABLE.NOTE +
-                    " BEGIN " +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
-                    "  WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
-                    " END";//在文件夹中插入一个Note之后需要更改的数据的表格。
+    private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER = "CREATE TRIGGER increase_folder_count_on_insert " + " AFTER INSERT ON " + TABLE.NOTE + " BEGIN " + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + "  WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + " END";
 
     /**
      * Decrease folder's note count when delete note from the folder
+     * 在文件夹中删除note时，更新文件夹的note数量
      */
-    private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
-            "CREATE TRIGGER decrease_folder_count_on_delete " +
-                    " AFTER DELETE ON " + TABLE.NOTE +
-                    " BEGIN " +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
-                    "  WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
-                    "  AND " + NoteColumns.NOTES_COUNT + ">0;" +
-                    " END";//在文件夹中删除一个Note之后需要更改的数据的表格。
+    private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER = "CREATE TRIGGER decrease_folder_count_on_delete " + " AFTER DELETE ON " + TABLE.NOTE + " BEGIN " + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + "  WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + "  AND " + NoteColumns.NOTES_COUNT + ">0;" + " END";
 
     /**
      * Update note's content when insert data with type {@link DataConstants#NOTE}
+     * 当Note插入新的数据时，更新note的内容，并更改表格
      */
-    private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
-            "CREATE TRIGGER update_note_content_on_insert " +
-                    " AFTER INSERT ON " + TABLE.DATA +
-                    " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
-                    " BEGIN" +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
-                    "  WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
-                    " END";//在文件夹中对一个Note导入新的数据之后需要更改的数据的表格。
+    private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER = "CREATE TRIGGER update_note_content_on_insert " + " AFTER INSERT ON " + TABLE.DATA + " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + " BEGIN" + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + "  WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + " END";
 
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has changed
+     * 构建一条SQL语句，用于实现在note中改变data后，进行当前状态的更新
      */
-    private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
-            "CREATE TRIGGER update_note_content_on_update " +
-                    " AFTER UPDATE ON " + TABLE.DATA +
-                    " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
-                    " BEGIN" +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
-                    "  WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
-                    " END";//Note数据被修改后需要更改的数据的表格。
+    private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER = "CREATE TRIGGER update_note_content_on_update " + " AFTER UPDATE ON " + TABLE.DATA + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + " BEGIN" + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + "  WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + " END";
 
     /**
      * Update note's content when data with {@link DataConstants#NOTE} type has deleted
+     * 当note的内容被删除时，更新表格
      */
-    private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
-            "CREATE TRIGGER update_note_content_on_delete " +
-                    " AFTER delete ON " + TABLE.DATA +
-                    " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
-                    " BEGIN" +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.SNIPPET + "=''" +
-                    "  WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
-                    " END";//Note数据被删除后需要更改的数据的表格。
+    private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER = "CREATE TRIGGER update_note_content_on_delete " + " AFTER delete ON " + TABLE.DATA + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + " BEGIN" + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.SNIPPET + "=''" + "  WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + " END";
 
     /**
      * Delete datas belong to note which has been deleted
+     * 删除数据库中的数据，当便签中的数据被删除时删除相应数据库
      */
-    private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
-            "CREATE TRIGGER delete_data_on_delete " +
-                    " AFTER DELETE ON " + TABLE.NOTE +
-                    " BEGIN" +
-                    "  DELETE FROM " + TABLE.DATA +
-                    "   WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
-                    " END";//删除已删除的便签的数据后需要更改的数据的表格。
+    private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER = "CREATE TRIGGER delete_data_on_delete " + " AFTER DELETE ON " + TABLE.NOTE + " BEGIN" + "  DELETE FROM " + TABLE.DATA + "   WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + " END";
 
     /**
      * Delete notes belong to folder which has been deleted
+     * 删除属于已删除的文件夹中的便签的数据
      */
-    private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
-            "CREATE TRIGGER folder_delete_notes_on_delete " +
-                    " AFTER DELETE ON " + TABLE.NOTE +
-                    " BEGIN" +
-                    "  DELETE FROM " + TABLE.NOTE +
-                    "   WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
-                    " END";//删除已删除的文件夹的便签后需要更改的数据的表格。
+    private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER = "CREATE TRIGGER folder_delete_notes_on_delete " + " AFTER DELETE ON " + TABLE.NOTE + " BEGIN" + "  DELETE FROM " + TABLE.NOTE + "   WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + " END";
 
     /**
      * Move notes belong to folder which has been moved to trash folder
+     * 还原垃圾桶中便签后需要更改的数据的表格。
      */
-    private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
-            "CREATE TRIGGER folder_move_notes_on_trash " +
-                    " AFTER UPDATE ON " + TABLE.NOTE +
-                    " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
-                    " BEGIN" +
-                    "  UPDATE " + TABLE.NOTE +
-                    "   SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
-                    "  WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
-                    " END";//还原垃圾桶中便签后需要更改的数据的表格。
+    private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER = "CREATE TRIGGER folder_move_notes_on_trash " + " AFTER UPDATE ON " + TABLE.NOTE + " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + " BEGIN" + "  UPDATE " + TABLE.NOTE + "   SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + "  WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + " END";
 
     public NotesDatabaseHelper(Context context) {
         super(context, DB_NAME, null, DB_VERSION);
-    }//构造函数，传入数据库的名称和版本
+    }
+    //构造函数，传入数据库的名称和版本
 
     public void createNoteTable(SQLiteDatabase db) {
         db.execSQL(CREATE_NOTE_TABLE_SQL);
         reCreateNoteTableTriggers(db);
         createSystemFolder(db);
         Log.d(TAG, "note table has been created");
-    }//创建表格（用来存储标签属性）
+    }
+    //创建表格（用来存储标签属性）
 
     private void reCreateNoteTableTriggers(SQLiteDatabase db) {
         db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update");
@@ -217,7 +142,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER);
         db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER);
         db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER);
-    }//execSQL是数据库操作的API，主要是更改行为的SQL语句。
+    }
+    //execSQL是数据库操作的API，主要是更改行为的SQL语句。
     //在这里主要是用来重新创建上述定义的表格用的，先删除原来有的数据库的触发器再重新创建新的数据库
 
     private void createSystemFolder(SQLiteDatabase db) {
@@ -225,6 +151,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
         /**
          * call record foler for call notes
+         * 初始化ContenValues实例，然后存入相应的通话记录文件夹类型形成映射，
          */
         values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
@@ -232,6 +159,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
         /**
          * root folder which is default folder
+         * 对根文件夹修改，先将values实例的内容清空，然后存入values，再插入对象
          */
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER);
@@ -240,6 +168,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
         /**
          * temporary folder which is used for moving note
+         * 设置临时文件夹作为文件夹移动的有效目标
          */
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER);
@@ -248,12 +177,14 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
         /**
          * create trash folder
+         * 创建垃圾文件夹
          */
         values.clear();
         values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
         db.insert(TABLE.NOTE, null, values);
-    }//创建几个系统文件夹
+    }
+    //创建几个系统文件夹
 
     public void createDataTable(SQLiteDatabase db) {
         db.execSQL(CREATE_DATA_TABLE_SQL);
@@ -270,14 +201,15 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER);
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER);
         db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER);
-    }//同上面的execSQL
+    }//创建用于表格初始化，删除触发器，然后更新触发器
 
     static synchronized NotesDatabaseHelper getInstance(Context context) {
         if (mInstance == null) {
             mInstance = new NotesDatabaseHelper(context);
         }
         return mInstance;
-    }//上网查是为解决同一时刻只能有一个线程执行.
+    }
+    //上网查是为解决同一时刻只能有一个线程执行.
     //在写程序库代码时，有时有一个类需要被所有的其它类使用，
     //但又要求这个类只能被实例化一次，是个服务类，定义一次，其它类使用同一个这个类的实例
 
@@ -289,43 +221,47 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
 
     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        //是否重建的信号
         boolean reCreateTriggers = false;
+        //是否从V2升级到V3
         boolean skipV2 = false;
-
+        //判断旧版本是不是V1，如果是就升级版本到V2
         if (oldVersion == 1) {
             upgradeToV2(db);
             skipV2 = true; // this upgrade including the upgrade from v2 to v3
             oldVersion++;
         }
-
+        //判断旧版本是V2，且未跳过V2版本，就升级版本到V3
         if (oldVersion == 2 && !skipV2) {
             upgradeToV3(db);
             reCreateTriggers = true;
             oldVersion++;
         }
-
+        //如果旧版本是V3，就升级版本到V4
         if (oldVersion == 3) {
             upgradeToV4(db);
             oldVersion++;
         }
-
+       //若重构触发器的值为真，那么，
+        // 要把便签（note）和数据（data）表单的数据库触发器重构，调用以上的定义
         if (reCreateTriggers) {
             reCreateNoteTableTriggers(db);
             reCreateDataTableTriggers(db);
         }
-
+        //旧版本与最新版本不一致，抛出异常
         if (oldVersion != newVersion) {
-            throw new IllegalStateException("Upgrade notes database to version " + newVersion
-                    + "fails");
+            throw new IllegalStateException("Upgrade notes database to version " + newVersion + "fails");
         }
-    }//数据库版本的更新（数据库内容的更改）
+    }
+    //数据库版本的更新（数据库内容的更改）
 
     private void upgradeToV2(SQLiteDatabase db) {
         db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE);
         db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA);
         createNoteTable(db);
         createDataTable(db);
-    }//更新到V2版本
+    }
+    //更新到V2版本,删除note和data表，然后新建表
 
     private void upgradeToV3(SQLiteDatabase db) {
         // drop unused triggers
@@ -333,17 +269,16 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
         db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete");
         db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update");
         // add a column for gtask id
-        db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID
-                + " TEXT NOT NULL DEFAULT ''");
+        db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''");
         // add a trash system folder
         ContentValues values = new ContentValues();
         values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER);
         values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM);
         db.insert(TABLE.NOTE, null, values);
-    }//更新到V3版本
+    }
+    //更新到V3版本，删除触发器，新增gtask和trash行，然后在表中增添表头
 
     private void upgradeToV4(SQLiteDatabase db) {
-        db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION
-                + " INTEGER NOT NULL DEFAULT 0");
+        db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0");
     }//更新到V4版本,但是不知道V2、V3、V4是什么意思
 }
\ No newline at end of file
diff --git a/doc/成员代码分析/jhw/NotesProvider.java b/doc/成员代码分析/jhw/NotesProvider.java
index 6897999..b732cd0 100644
--- a/doc/成员代码分析/jhw/NotesProvider.java
+++ b/doc/成员代码分析/jhw/NotesProvider.java
@@ -1,4 +1,5 @@
 package net.micode.notes.data;
+//说明当前文件所在包
 
 import android.app.SearchManager;
 import android.content.ContentProvider;
@@ -16,6 +17,7 @@ import net.micode.notes.R;
 import net.micode.notes.data.Notes.DataColumns;
 import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.data.NotesDatabaseHelper.TABLE;
+
 //为存储和获取数据提供接口。可以在不同的应用程序之间共享数据
 //ContentProvider提供的方法
 //query：查询
@@ -26,11 +28,11 @@ import net.micode.notes.data.NotesDatabaseHelper.TABLE;
 public class NotesProvider extends ContentProvider {
     // UriMatcher用于匹配Uri
     private static final UriMatcher mMatcher;
-
+    //数据库辅助类的实例对象
     private NotesDatabaseHelper mHelper;
-
+    //写入日志时的标签名
     private static final String TAG = "NotesProvider";
-
+    //Uri资源的ID共6个
     private static final int URI_NOTE            = 1;
     private static final int URI_NOTE_ITEM       = 2;
     private static final int URI_DATA            = 3;
@@ -56,7 +58,7 @@ public class NotesProvider extends ContentProvider {
      * x'0A' represents the '\n' character in sqlite. For title and content in the search result,
      * we will trim '\n' and white space in order to show more information.
      */
-    // 声明 NOTES_SEARCH_PROJECTION
+    // 声明 字符串NOTES_SEARCH_PROJECTION,作为实参，相当于where语句
     private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + ","
             + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + ","
             + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + ","
@@ -64,7 +66,7 @@ public class NotesProvider extends ContentProvider {
             + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + ","
             + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + ","
             + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA;
-    // 声明NOTES_SNIPPET_SEARCH_QUERY
+    // 声明NOTES_SNIPPET_SEARCH_QUERY，作用同上
     private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION
             + " FROM " + TABLE.NOTE
             + " WHERE " + NoteColumns.SNIPPET + " LIKE ?"
@@ -83,6 +85,7 @@ public class NotesProvider extends ContentProvider {
     // 查询uri在数据库中对应的位置
     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
                         String sortOrder) {
+        //先声明一个游标
         Cursor c = null;
         // 获取可读数据库
         SQLiteDatabase db = mHelper.getReadableDatabase();
@@ -124,6 +127,7 @@ public class NotesProvider extends ContentProvider {
                         searchString = uri.getPathSegments().get(1);
                     }
                 } else {
+                    //利用URi的getQueryParameter方法可以获取字符串参数
                     searchString = uri.getQueryParameter("pattern");
                 }
 
@@ -133,9 +137,11 @@ public class NotesProvider extends ContentProvider {
 
                 try {
                     searchString = String.format("%%%s%%", searchString);
+                    //通过上文得到的搜索字符串进行格式加工，然后用于下面数据库查询条件
                     c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY,
                             new String[] { searchString });
                 } catch (IllegalStateException ex) {
+                    //捕捉异常
                     Log.e(TAG, "got exception: " + ex.toString());
                 }
                 break;
@@ -144,6 +150,7 @@ public class NotesProvider extends ContentProvider {
                 throw new IllegalArgumentException("Unknown URI " + uri);
         }
         if (c != null) {
+            //若getContentResolver发生变化，就接收通知
             c.setNotificationUri(getContext().getContentResolver(), uri);
         }
         return c;
@@ -173,13 +180,14 @@ public class NotesProvider extends ContentProvider {
                 throw new IllegalArgumentException("Unknown URI " + uri);
         }
         // Notify the note uri
-        // notifyChange获得一个ContextResolver对象并且更新里面的内容
+        // 获的一个content对象，若发生了变化则调用getContentResolver，由notifyChange对监听它的对象进行通知
         if (noteId > 0) {
             getContext().getContentResolver().notifyChange(
                     ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null);
         }
 
         // Notify the data uri
+        //更新Data ID
         if (dataId > 0) {
             getContext().getContentResolver().notifyChange(
                     ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null);
@@ -200,7 +208,9 @@ public class NotesProvider extends ContentProvider {
         boolean deleteData = false;
         switch (mMatcher.match(uri)) {
             case URI_NOTE:
+                //筛选语句如下
                 selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 ";
+                //删除相应数据
                 count = db.delete(TABLE.NOTE, selection, selectionArgs);
                 break;
             case URI_NOTE_ITEM:
@@ -210,9 +220,11 @@ public class NotesProvider extends ContentProvider {
                  * trash
                  */
                 long noteId = Long.valueOf(id);
+                //将ID值转为长整数
                 if (noteId <= 0) {
                     break;
                 }
+                //执行删除操作，三个参数分别为要删除的表，删除筛选条件，
                 count = db.delete(TABLE.NOTE,
                         NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs);
                 break;
@@ -230,6 +242,7 @@ public class NotesProvider extends ContentProvider {
                 throw new IllegalArgumentException("Unknown URI " + uri);
         }
         if (count > 0) {
+            //判断是否进行了删除操作，并对监听了删除操作的其他部分给予提醒
             if (deleteData) {
                 getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
             }
@@ -247,6 +260,7 @@ public class NotesProvider extends ContentProvider {
         boolean updateData = false;
         switch (mMatcher.match(uri)) {
             case URI_NOTE:
+                //note版本更新，数据更新，以下各部分一致
                 increaseNoteVersion(-1, selection, selectionArgs);
                 count = db.update(TABLE.NOTE, values, selection, selectionArgs);
                 break;
@@ -267,9 +281,10 @@ public class NotesProvider extends ContentProvider {
                 updateData = true;
                 break;
             default:
+                //查询异常处理
                 throw new IllegalArgumentException("Unknown URI " + uri);
         }
-
+        //在执行了更新的操作之后，要对监听更新操作的其他部分给予提醒
         if (count > 0) {
             if (updateData) {
                 getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null);
diff --git a/doc/成员代码分析/lzb/SqlNote.java b/doc/成员代码分析/lzb/SqlNote.java
index 634665b..ea7c39c 100644
--- a/doc/成员代码分析/lzb/SqlNote.java
+++ b/doc/成员代码分析/lzb/SqlNote.java
@@ -1,18 +1,3 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
 
 package net.micode.notes.gtask.data;
 
@@ -37,21 +22,11 @@ import org.json.JSONObject;
 
 import java.util.ArrayList;
 
-
-
 /*
- * Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的子父集。
+ * Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的父集。
  * 和SqlData相比，SqlNote算是真正意义上的数据了。
  */
 
-
-/*
- * 功能描述：
- * 实现过程：
- * 参数注解：
- * Made By CuiCan
- */
-
 public class SqlNote {
     /*
      * 功能描述：得到类的简写名称存入字符串TAG中
@@ -59,7 +34,7 @@ public class SqlNote {
      * Made By CuiCan
      */
     private static final String TAG = SqlNote.class.getSimpleName();
-
+    //将INVALID_ID 初始化为-99999
     private static final int INVALID_ID = -99999;
     // 集合了interface NoteColumns中所有SF常量（17个）
     public static final String[] PROJECTION_NOTE = new String[] {
@@ -157,9 +132,11 @@ public class SqlNote {
         mId = INVALID_ID;
         mAlertDate = 0;
         mBgColorId = ResourceParser.getDefaultBgId(context);
-        mCreatedDate = System.currentTimeMillis();//调用系统函数获得创建时间
+        mCreatedDate = System.currentTimeMillis();
+        //调用系统函数获得创建时间
         mHasAttachment = 0;
-        mModifiedDate = System.currentTimeMillis();//最后一次修改时间初始化为创建时间
+        mModifiedDate = System.currentTimeMillis();
+        //最后一次修改时间初始化为创建时间
         mParentId = 0;
         mSnippet = "";
         mType = Notes.TYPE_NOTE;
@@ -220,10 +197,12 @@ public class SqlNote {
             c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
                     new String[] {
                             String.valueOf(id)
-                    }, null);//通过id获得对应的ContentResolver中的cursor
+                    }, null);
+            //通过id获得对应的ContentResolver中的cursor
             if (c != null) {
                 c.moveToNext();
-                loadFromCursor(c);//然后加载数据进行初始化，这样函数
+                loadFromCursor(c);
+                //然后加载数据进行初始化，这样函数
                 //SqlNote(Context context, long id)与SqlNote(Context context, long id)的实现方式基本相同
             } else {
                 Log.w(TAG, "loadFromCursor: cursor = null");
@@ -239,7 +218,7 @@ public class SqlNote {
      * Made By CuiCan
      */
     private void loadFromCursor(Cursor c) {
-        //直接从一条记录中的获得以下变量的初始值
+        //直接从一条记录中获得以下变量的初始值
         mId = c.getLong(ID_COLUMN);
         mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
         mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
@@ -293,9 +272,12 @@ public class SqlNote {
     public boolean setContent(JSONObject js) {
         try {
             JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
+            //创建一个JSONObject对象note
+            //不能对系统文件夹进行设置操作
             if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
                 Log.w(TAG, "cannot set system folder");
             } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
+                //文件夹只能更新摘要和类型
                 // for folder we can only update the snnipet and type
                 String snippet = note.has(NoteColumns.SNIPPET) ? note
                         .getString(NoteColumns.SNIPPET) : "";
@@ -311,13 +293,17 @@ public class SqlNote {
                 }
                 mType = type;
             } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
+                //如果是便签则直接进入，下面一句是获取提示日期
                 JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
+                //获取数据的ID
                 long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
+                //如果只是通过上下文对note进行数据库操作，或者该ID与原ID不相同
                 if (mIsCreate || mId != id) {
                     mDiffNoteValues.put(NoteColumns.ID, id);
                 }
                 mId = id;
 
+                //获取数据的提醒日期
                 long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
                         .getLong(NoteColumns.ALERTED_DATE) : 0;
                 if (mIsCreate || mAlertDate != alertDate) {
@@ -325,12 +311,14 @@ public class SqlNote {
                 }
                 mAlertDate = alertDate;
 
+                //获取背景颜色ID
                 int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
                         .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
                 if (mIsCreate || mBgColorId != bgColorId) {
                     mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
                 }
                 mBgColorId = bgColorId;
+                //获取创建日期
                 long createDate = note.has(NoteColumns.CREATED_DATE) ? note
                         .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
                 if (mIsCreate || mCreatedDate != createDate) {
@@ -338,6 +326,7 @@ public class SqlNote {
                 }
                 mCreatedDate = createDate;
 
+                //取数据的有无附件的布尔值
                 int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note
                         .getInt(NoteColumns.HAS_ATTACHMENT) : 0;
                 if (mIsCreate || mHasAttachment != hasAttachment) {
@@ -345,6 +334,7 @@ public class SqlNote {
                 }
                 mHasAttachment = hasAttachment;
 
+                //对最近修改日期的操作
                 long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
                         .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
                 if (mIsCreate || mModifiedDate != modifiedDate) {
@@ -352,6 +342,7 @@ public class SqlNote {
                 }
                 mModifiedDate = modifiedDate;
 
+                //获取数据的父节点ID
                 long parentId = note.has(NoteColumns.PARENT_ID) ? note
                         .getLong(NoteColumns.PARENT_ID) : 0;
                 if (mIsCreate || mParentId != parentId) {
@@ -359,6 +350,7 @@ public class SqlNote {
                 }
                 mParentId = parentId;
 
+                //对摘要操作
                 String snippet = note.has(NoteColumns.SNIPPET) ? note
                         .getString(NoteColumns.SNIPPET) : "";
                 if (mIsCreate || !mSnippet.equals(snippet)) {
@@ -366,6 +358,7 @@ public class SqlNote {
                 }
                 mSnippet = snippet;
 
+                //对类型操作
                 int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
                         : Notes.TYPE_NOTE;
                 if (mIsCreate || mType != type) {
@@ -373,6 +366,7 @@ public class SqlNote {
                 }
                 mType = type;
 
+                //获取小部件的ID
                 int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID)
                         : AppWidgetManager.INVALID_APPWIDGET_ID;
                 if (mIsCreate || mWidgetId != widgetId) {
@@ -380,6 +374,7 @@ public class SqlNote {
                 }
                 mWidgetId = widgetId;
 
+                //对小部件的类型操作
                 int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
                         .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
                 if (mIsCreate || mWidgetType != widgetType) {
@@ -387,6 +382,7 @@ public class SqlNote {
                 }
                 mWidgetType = widgetType;
 
+                //获取数据的原始父文件夹ID
                 long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
                         .getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
                 if (mIsCreate || mOriginParent != originParent) {
@@ -394,6 +390,7 @@ public class SqlNote {
                 }
                 mOriginParent = originParent;
 
+                //遍历 dataArray，查找 id 为 dataId 的数据
                 for (int i = 0; i < dataArray.length(); i++) {
                     JSONObject data = dataArray.getJSONObject(i);
                     SqlData sqlData = null;
@@ -437,7 +434,8 @@ public class SqlNote {
             }
 
             JSONObject note = new JSONObject();
-            if (mType == Notes.TYPE_NOTE) {//类型为note时
+            if (mType == Notes.TYPE_NOTE) {
+                //类型为note时,将13个键值对的值写入note中，然后再设置为js键值对中的一个值
                 note.put(NoteColumns.ID, mId);
                 note.put(NoteColumns.ALERTED_DATE, mAlertDate);
                 note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
@@ -453,14 +451,17 @@ public class SqlNote {
                 js.put(GTaskStringUtils.META_HEAD_NOTE, note);
 
                 JSONArray dataArray = new JSONArray();
+                //将note中的所有数据存进dataarray中
                 for (SqlData sqlData : mDataList) {
                     JSONObject data = sqlData.getContent();
                     if (data != null) {
                         dataArray.put(data);
                     }
                 }
+                //将dataArray存进js中
                 js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
-            } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {//类型为文件夹或者
+            } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {
+                //类型为文件夹或者系统文件类型
                 note.put(NoteColumns.ID, mId);
                 note.put(NoteColumns.TYPE, mType);
                 note.put(NoteColumns.SNIPPET, mSnippet);
@@ -486,7 +487,7 @@ public class SqlNote {
     }
 
     /*
-     * 功能描述：给当前id设置Gtaskid
+     * 功能描述：用当前id设置Gtaskid
      * 参数注解：
      * Made By CuiCan
      */
@@ -549,16 +550,18 @@ public class SqlNote {
     }
 
     /*
-     * 功能描述：commit函数用于把当前造作所做的修改保存到数据库
+     * 功能描述：commit函数用于把当前所做的修改保存到数据库
      * 参数注解：
      * Made By CuiCan
      */
     public void commit(boolean validateVersion) {
         if (mIsCreate) {
+            //如果是第一种构造方式，ID为无效ID且包含该ID，则删除
             if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
                 mDiffNoteValues.remove(NoteColumns.ID);
             }
 
+            //插入便签的uri
             Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
             try {
                 mId = Long.valueOf(uri.getPathSegments().get(1));
@@ -571,11 +574,14 @@ public class SqlNote {
             }
 
             if (mType == Notes.TYPE_NOTE) {
-                for (SqlData sqlData : mDataList) {//直接使用sqldata中的实现
+                //如果类型为便签类型
+                for (SqlData sqlData : mDataList) {
+                    //直接使用sqldata中的实现方法来实现
                     sqlData.commit(mId, false, -1);
                 }
             }
         } else {
+            //如果该便签ID是无效ID，报错：没有这个便签
             if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
                 Log.e(TAG, "No such note");
                 throw new IllegalStateException("Try to update note with invalid id");
@@ -583,7 +589,8 @@ public class SqlNote {
             if (mDiffNoteValues.size() > 0) {
                 mVersion ++;
                 int result = 0;
-                if (!validateVersion) {//构造字符串
+                if (!validateVersion) {
+                    //构造字符串
                     result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
                             + NoteColumns.ID + "=?)", new String[] {
                             String.valueOf(mId)
@@ -595,24 +602,27 @@ public class SqlNote {
                                     String.valueOf(mId), String.valueOf(mVersion)
                             });
                 }
+                //如果内容解析器没有更新，那么报错：没有更新，或许用户在同步时进行更新
                 if (result == 0) {
                     Log.w(TAG, "there is no update. maybe user updates note when syncing");
                 }
             }
 
             if (mType == Notes.TYPE_NOTE) {
+                //如果类型为便签类型，那么就调用SqlData中的方法来写入修改记录
                 for (SqlData sqlData : mDataList) {
                     sqlData.commit(mId, validateVersion, mVersion);
                 }
             }
         }
 
-        // refresh local info
+        //通过 cursor 从当前 id 处加载数据
         loadFromCursor(mId);
         if (mType == Notes.TYPE_NOTE)
             loadDataContent();
-
+        //清空，回到初始化状态
         mDiffNoteValues.clear();
+        //改变数据库构造模式
         mIsCreate = false;
     }
-}
+}
\ No newline at end of file
diff --git a/doc/成员代码分析/lzb/Task.java b/doc/成员代码分析/lzb/Task.java
index 7ce867f..196753b 100644
--- a/doc/成员代码分析/lzb/Task.java
+++ b/doc/成员代码分析/lzb/Task.java
@@ -1,19 +1,3 @@
-/*
- * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *        http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 package net.micode.notes.gtask.data;
 
 import android.database.Cursor;
@@ -30,23 +14,27 @@ import net.micode.notes.tool.GTaskStringUtils;
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
-
-
-
+//创建Task类（继承父类Node）
 public class Task extends Node {
+    //通过getSimpleName（）获得类名
     private static final String TAG = Task.class.getSimpleName();
 
-    private boolean mCompleted;//是否完成
+    private boolean mCompleted;
+    //是否完成
 
     private String mNotes;
 
-    private JSONObject mMetaInfo;//将在实例中存储数据的类型
+    private JSONObject mMetaInfo;
+    //将在实例中存储数据的类型
 
-    private Task mPriorSibling;//对应的优先兄弟Task的指针（待完善）
+    private Task mPriorSibling;
+    //对应的优先兄弟Task的指针
 
-    private TaskList mParent;//所在的任务列表的指针
+    private TaskList mParent;
+    //所在的任务列表的指针
 
     public Task() {
+        //调用父类的构造方法
         super();
         mCompleted = false;
         mNotes = null;
@@ -56,12 +44,14 @@ public class Task extends Node {
     }
 
     public JSONObject getCreateAction(int actionId) {
+        //新建一个 JSONObject 的对象用来存放同步过程中所用到的 task 信息
         JSONObject js = new JSONObject();
 
         try {
             // action_type
             js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE,
                     GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE);
+            //共享数据存入动作类型action_ type,以下同类
 
             // action_id
             js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId);
@@ -69,15 +59,17 @@ public class Task extends Node {
             // index
             js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this));
 
-            // entity_delta
+            // 创建实体数据并将name，创建者id，实体类型存入数据
             JSONObject entity = new JSONObject();
             entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName());
             entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null");
             entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE,
                     GTaskStringUtils.GTASK_JSON_TYPE_TASK);
+            //如果存在Note，也将其放入entity
             if (getNotes() != null) {
                 entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes());
             }
+            //实体存入js
             js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity);
 
             // parent_id
@@ -100,6 +92,7 @@ public class Task extends Node {
             }
 
         } catch (JSONException e) {
+            //异常处理，当create task'失败时
             Log.e(TAG, e.toString());
             e.printStackTrace();
             throw new ActionFailureException("fail to generate task-create jsonobject");
@@ -109,6 +102,7 @@ public class Task extends Node {
     }
 
     public JSONObject getUpdateAction(int actionId) {
+        //此函数和上一个getCreatAction（）的功能差不多，一个是creat，一个updata，都是对action进行操作
         JSONObject js = new JSONObject();
 
         try {
@@ -141,6 +135,7 @@ public class Task extends Node {
     }
 
     public void setContentByRemoteJSON(JSONObject js) {
+        //通过远端的jsonobject获取任务内容,如果有相应的数据，就设置NOTE中的值
         if (js != null) {
             try {
                 // id
@@ -180,9 +175,11 @@ public class Task extends Node {
         }
     }
 
-    public void setContentByLocalJSON(JSONObject js) {    //��metadata����ʵʩ
+    public void setContentByLocalJSON(JSONObject js) {
+        ////通过本地的jsonobject获取任务内容,如果有相应的数据，就设置NOTE中的值
         if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)
                 || !js.has(GTaskStringUtils.META_HEAD_DATA)) {
+            //如果js不存在或者js没有元数据的开头或者js指针没有元数据
             Log.w(TAG, "setContentByLocalJSON: nothing is avaiable");
         }
 
@@ -198,6 +195,7 @@ public class Task extends Node {
             for (int i = 0; i < dataArray.length(); i++) {
                 JSONObject data = dataArray.getJSONObject(i);
                 if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) {
+                    //遍历 dataArray 查找与数据库中DataConstants.NOTE 记录信息一致的 data
                     setName(data.getString(DataColumns.CONTENT));
                     break;
                 }
@@ -210,10 +208,11 @@ public class Task extends Node {
     }
 
     public JSONObject getLocalJSONFromContent() {
+        //通过内容更新本地的jsonobject
         String name = getName();
         try {
             if (mMetaInfo == null) {
-                // new task created from web
+                //元数据类型信息为空，若名字也为空则新建一个 JSONObject 对象并将其返回
                 if (name == null) {
                     Log.w(TAG, "the note seems to be an empty one");
                     return null;
@@ -230,7 +229,7 @@ public class Task extends Node {
                 js.put(GTaskStringUtils.META_HEAD_NOTE, note);
                 return js;
             } else {
-                // synced task
+                // 否则将元数据同步至数据中
                 JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
                 JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
 
@@ -253,6 +252,7 @@ public class Task extends Node {
     }
 
     public void setMetaInfo(MetaData metaData) {
+        //设置元数据信息
         if (metaData != null && metaData.getNotes() != null) {
             try {
                 mMetaInfo = new JSONObject(metaData.getNotes());
@@ -264,28 +264,32 @@ public class Task extends Node {
     }
 
     public int getSyncAction(Cursor c) {
+        // 异常处理，进行同步操作，如果不成功按照对应的情况进行异常信息的反馈，比如远端文档被删除、文档不匹配等等
         try {
             JSONObject noteInfo = null;
             if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) {
+                //元数据信息不为空并且元数据信息还含有“META_HEAD_NOTE”，说明便签存在
                 noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
             }
 
             if (noteInfo == null) {
+                //数据未写入时写入日志
                 Log.w(TAG, "it seems that note meta has been deleted");
                 return SYNC_ACTION_UPDATE_REMOTE;
             }
-
+            //如果没有ID
             if (!noteInfo.has(NoteColumns.ID)) {
                 Log.w(TAG, "remote note id seems to be deleted");
                 return SYNC_ACTION_UPDATE_LOCAL;
             }
 
-            // validate the note id now
+            // 如果是无效ID
             if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) {
                 Log.w(TAG, "note id doesn't match");
                 return SYNC_ACTION_UPDATE_LOCAL;
             }
 
+            //
             if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) {
                 // there is no local update
                 if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) {
@@ -317,6 +321,8 @@ public class Task extends Node {
     }
 
     public boolean isWorthSaving() {
+        //判断是否值得存放，即当前数据是否有效，若数据非空 或 名字合法存在且去除空格后的名字长度大于零则返回真值。
+        //其中 trim() 的作用是去除字符串前后的空格：public String trim()返回字符串的副本，忽略前导空白和尾部空白
         return mMetaInfo != null || (getName() != null && getName().trim().length() > 0)
                 || (getNotes() != null && getNotes().trim().length() > 0);
     }
@@ -324,33 +330,41 @@ public class Task extends Node {
     public void setCompleted(boolean completed) {
         this.mCompleted = completed;
     }
+    //设定是否完成的成员变量
 
     public void setNotes(String notes) {
         this.mNotes = notes;
     }
+    //设定是note成员变量
 
     public void setPriorSibling(Task priorSibling) {
         this.mPriorSibling = priorSibling;
     }
+    //.设置优先兄弟 task 的优先级
 
     public void setParent(TaskList parent) {
         this.mParent = parent;
     }
+    //设置父节点列表
 
     public boolean getCompleted() {
         return this.mCompleted;
     }
+    //获取 task 是否修改完毕的记录
 
     public String getNotes() {
+        //获取成员变量 mNotes 的信息
         return this.mNotes;
     }
 
     public Task getPriorSibling() {
         return this.mPriorSibling;
     }
+    //获取优先兄弟 task
 
     public TaskList getParent() {
         return this.mParent;
     }
+    //获取父节点列表
 
 }
\ No newline at end of file
diff --git a/doc/成员代码分析/lzb/TaskList.java b/doc/成员代码分析/lzb/TaskList.java
index 9598063..d82d70d 100644
--- a/doc/成员代码分析/lzb/TaskList.java
+++ b/doc/成员代码分析/lzb/TaskList.java
@@ -30,7 +30,6 @@ import org.json.JSONObject;
 import java.util.ArrayList;
 
 
-
 public class TaskList extends Node {
     private static final String TAG = TaskList.class.getSimpleName();//tag标记
 
@@ -398,4 +397,65 @@ public class TaskList extends Node {
     public int getIndex() {
         return this.mIndex;
     }
-}
\ No newline at end of file
+    }
+
+    public boolean moveChildTask(Task task, int index) {
+
+        if (index < 0 || index >= mChildren.size()) {
+            Log.e(TAG, "move child task: invalid index");
+            return false;
+        }
+
+        int pos = mChildren.indexOf(task);
+        if (pos == -1) {
+            Log.e(TAG, "move child task: the task should in the list");
+            return false;
+        }
+
+        if (pos == index)
+            return true;
+        return (removeChildTask(task) && addChildTask(task, index));
+    }
+
+    public Task findChildTaskByGid(String gid) {
+        for (int i = 0; i < mChildren.size(); i++) {
+            Task t = mChildren.get(i);
+            if (t.getGid().equals(gid)) {
+                return t;
+            }
+        }
+        return null;
+    }
+
+    public int getChildTaskIndex(Task task) {
+        return mChildren.indexOf(task);
+    }
+
+    public Task getChildTaskByIndex(int index) {
+        if (index < 0 || index >= mChildren.size()) {
+            Log.e(TAG, "getTaskByIndex: invalid index");
+            return null;
+        }
+        return mChildren.get(index);
+    }
+
+    public Task getChilTaskByGid(String gid) {
+        for (Task task : mChildren) {
+            if (task.getGid().equals(gid))
+                return task;
+        }
+        return null;
+    }
+
+    public ArrayList<Task> getChildTaskList() {
+        return this.mChildren;
+    }
+
+    public void setIndex(int index) {
+        this.mIndex = index;
+    }
+
+    public int getIndex() {
+        return this.mIndex;
+    }
+}