diff --git a/源程序代码-小米便签-Notes-master/Notes-master/src/net/micode/notes/data/Notes.java b/源程序代码-小米便签-Notes-master/Notes-master/src/net/micode/notes/data/Notes.java
index f240604..0d2ae01 100644
--- a/源程序代码-小米便签-Notes-master/Notes-master/src/net/micode/notes/data/Notes.java
+++ b/源程序代码-小米便签-Notes-master/Notes-master/src/net/micode/notes/data/Notes.java
@@ -18,11 +18,14 @@ package net.micode.notes.data;
 
 import android.net.Uri;
 public class Notes {
+  // 内容提供者的授权标识
     public static final String AUTHORITY = "micode_notes";
+  // 日志标签
     public static final String TAG = "Notes";
-    public static final int TYPE_NOTE     = 0;
-    public static final int TYPE_FOLDER   = 1;
-    public static final int TYPE_SYSTEM   = 2;
+	// 笔记类型常量
+    public static final int TYPE_NOTE     = 0;  // 普通笔记类型
+    public static final int TYPE_FOLDER   = 1;   // 文件夹类型
+    public static final int TYPE_SYSTEM   = 2;   // 系统文件夹类型
 
     /**
      * Following IDs are system folders' identifiers
@@ -30,22 +33,25 @@ 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
      */
-    public static final int ID_ROOT_FOLDER = 0;
-    public static final int ID_TEMPARAY_FOLDER = -1;
-    public static final int ID_CALL_RECORD_FOLDER = -2;
-    public static final int ID_TRASH_FOLER = -3;
-
-    public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
-    public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
-    public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
-    public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
-    public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
-    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;
-
+    public static final int ID_ROOT_FOLDER = 0;    // 根文件夹ID
+    public static final int ID_TEMPARAY_FOLDER = -1;  // 临时文件夹ID
+    public static final int ID_CALL_RECORD_FOLDER = -2;  // 通话记录文件夹ID
+    public static final int ID_TRASH_FOLER = -3;   // 回收站文件夹ID
+
+		// Intent 附加数据键名常量
+    public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; // 提醒日期
+    public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";  // 背景颜色ID
+    public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";  // 小部件ID
+    public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";  // 小部件类型
+    public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";   // 文件夹ID
+    public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";  // 通话日期
+
+		// 小部件类型常量
+    public static final int TYPE_WIDGET_INVALIDE      = -1;   // 无效小部件类型
+    public static final int TYPE_WIDGET_2X            = 0;  // 2x大小小部件
+    public static final int TYPE_WIDGET_4X            = 1;  // 4x大小小部件
+
+	// 数据常量类
     public static class DataConstants {
         public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
         public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
@@ -60,7 +66,7 @@ public class Notes {
      * Uri to query data
      */
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
-
+	// 笔记列定义接口
     public interface NoteColumns {
         /**
          * The unique ID for a row
@@ -240,7 +246,7 @@ public class Notes {
          */
         public static final String DATA5 = "data5";
     }
-
+		// 文本笔记数据定义
     public static final class TextNote implements DataColumns {
         /**
          * Mode to indicate the text in check list mode or not
@@ -248,15 +254,15 @@ public class Notes {
          */
         public static final String MODE = DATA1;
 
-        public static final int MODE_CHECK_LIST = 1;
+        public static final int MODE_CHECK_LIST = 1;  // 清单模式
 
-        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";  // 内容类型
 
-        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; // 内容项类型
 
-        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
+        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); // 内容URI
     }
-
+	// 通话笔记数据定义
     public static final class CallNote implements DataColumns {
         /**
          * Call date for this record
@@ -270,10 +276,10 @@ public class Notes {
          */
         public static final String PHONE_NUMBER = DATA3;
 
-        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
+        public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";  // 内容类型
 
-        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
+        public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";  // 内容项类型
 
-        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
+        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");  // 内容URI
     }
 }