diff --git a/app/src/main/java/net/micode/notes/model/WorkingNote.java b/app/src/main/java/net/micode/notes/model/WorkingNote.java
index 12079de..e999d6a 100644
--- a/app/src/main/java/net/micode/notes/model/WorkingNote.java
+++ b/app/src/main/java/net/micode/notes/model/WorkingNote.java
@@ -62,6 +62,9 @@ public class WorkingNote {
 
     private NoteSettingChangedListener mNoteSettingStatusListener;
 
+    /**
+     * 声明 DATA_PROJECTION字符串数组
+     */
     public static final String[] DATA_PROJECTION = new String[]{
             DataColumns.ID,
             DataColumns.CONTENT,
@@ -102,6 +105,10 @@ public class WorkingNote {
     private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
 
     // New note construct
+
+    /**
+     * WorkingNote的构造函数
+     * */
     private WorkingNote(Context context, long folderId) {
         mContext = context;
         mAlertDate = 0;
@@ -124,6 +131,9 @@ public class WorkingNote {
         loadNote();
     }
 
+    /**
+     * 通过数据库调用query函数找到第一个条目
+     */
     private void loadNote() {
         Cursor cursor = mContext.getContentResolver().query(
                 ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
@@ -151,7 +161,9 @@ public class WorkingNote {
                 DataColumns.NOTE_ID + "=?", new String[]{
                         String.valueOf(mNoteId)
                 }, null);
-
+/**
+ * 查看第一项是否存在
+ */
         if (cursor != null) {
             if (cursor.moveToFirst()) {
                 do {
@@ -174,6 +186,9 @@ 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) {
         WorkingNote note = new WorkingNote(context, folderId);
@@ -229,6 +244,10 @@ public class WorkingNote {
         mNoteSettingStatusListener = l;
     }
 
+    /**
+     * 设置AlertDate
+     * 若 mAlertDate与data不同，则更改mAlertDate并设定NoteValue
+     */
     public void setAlertDate(long date, boolean set) {
         if (date != mAlertDate) {
             mAlertDate = date;
@@ -239,6 +258,9 @@ public class WorkingNote {
         }
     }
 
+    /**
+     * 设定删除标记
+     */
     public void markDeleted(boolean mark) {
         mIsDeleted = mark;
         if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
@@ -247,6 +269,9 @@ public class WorkingNote {
         }
     }
 
+    /**
+     *设定背景颜色
+     */
     public void setBgColorId(int id) {
         if (id != mBgColorId) {
             mBgColorId = id;
@@ -257,6 +282,9 @@ public class WorkingNote {
         }
     }
 
+    /**
+     *设定检查列表模式
+     */
     public void setCheckListMode(int mode) {
         if (mMode != mode) {
             if (mNoteSettingStatusListener != null) {
@@ -267,6 +295,9 @@ public class WorkingNote {
         }
     }
 
+    /**
+     *设定WidgetType
+     */
     public void setWidgetType(int type) {
         if (type != mWidgetType) {
             mWidgetType = type;
@@ -274,6 +305,9 @@ public class WorkingNote {
         }
     }
 
+    /**
+     *设定WidgetId
+     */
     public void setWidgetId(int id) {
         if (id != mWidgetId) {
             mWidgetId = id;
@@ -281,6 +315,9 @@ public class WorkingNote {
         }
     }
 
+    /**
+     *设定setWorkingText
+     */
     public void setWorkingText(String text) {
         if (!TextUtils.equals(mContent, text)) {
             mContent = text;