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index 63636ca..fea4305 100644
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diff --git a/src/app/build/intermediates/dex/debug/mergeDexDebug/classes.dex b/src/app/build/intermediates/dex/debug/mergeDexDebug/classes.dex
index 2820f9c..cc52e81 100644
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diff --git a/src/app/build/intermediates/incremental/debug/mergeDebugResources/compile-file-map.properties b/src/app/build/intermediates/incremental/debug/mergeDebugResources/compile-file-map.properties
index 52b9b60..de92770 100644
--- a/src/app/build/intermediates/incremental/debug/mergeDebugResources/compile-file-map.properties
+++ b/src/app/build/intermediates/incremental/debug/mergeDebugResources/compile-file-map.properties
@@ -1,4 +1,4 @@
-#Thu Sep 14 20:59:17 CST 2023
+#Fri Sep 15 09:58:37 CST 2023
 net.micode.notes.app-main-7\:/drawable-hdpi/font_super.png=D\:\\Code\\Repository\\Android\\Notes2\\src\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_font_super.png.flat
 net.micode.notes.app-main-7\:/drawable-hdpi/call_record.png=D\:\\Code\\Repository\\Android\\Notes2\\src\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_call_record.png.flat
 net.micode.notes.app-main-7\:/drawable-hdpi/new_note_normal.png=D\:\\Code\\Repository\\Android\\Notes2\\src\\app\\build\\intermediates\\merged_res\\debug\\drawable-hdpi_new_note_normal.png.flat
diff --git a/src/app/build/intermediates/incremental/packageDebug/tmp/debug/dex-renamer-state.txt b/src/app/build/intermediates/incremental/packageDebug/tmp/debug/dex-renamer-state.txt
index f82bb3b..feadbeb 100644
--- a/src/app/build/intermediates/incremental/packageDebug/tmp/debug/dex-renamer-state.txt
+++ b/src/app/build/intermediates/incremental/packageDebug/tmp/debug/dex-renamer-state.txt
@@ -1,4 +1,4 @@
-#Fri Sep 15 08:20:45 CST 2023
+#Sun Sep 17 16:46:56 CST 2023
 base.0=D\:\\Code\\Repository\\Android\\Notes2\\src\\app\\build\\intermediates\\dex\\debug\\mergeDexDebug\\classes.dex
 renamed.0=classes.dex
 path.0=classes.dex
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diff --git a/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$BackgroundQueryHandler.dex b/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$BackgroundQueryHandler.dex
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diff --git a/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$ListEditState.dex b/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$ListEditState.dex
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diff --git a/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$ModeCallback$1.dex b/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$ModeCallback$1.dex
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diff --git a/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$ModeCallback$2.dex b/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$ModeCallback$2.dex
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diff --git a/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$NewNoteOnTouchListener.dex b/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListActivity$NewNoteOnTouchListener.dex
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diff --git a/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListItem.dex b/src/app/build/intermediates/project_dex_archive/debug/out/net/micode/notes/ui/NotesListItem.dex
index f8c2de3..ca0cc07 100644
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diff --git a/src/app/build/tmp/compileDebugJavaWithJavac/previous-compilation-data.bin b/src/app/build/tmp/compileDebugJavaWithJavac/previous-compilation-data.bin
index 44a3ce9..f89fb40 100644
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diff --git a/src/app/src/main/java/net/micode/notes/data/Notes.java b/src/app/src/main/java/net/micode/notes/data/Notes.java
index 27d70b6..48afe3d 100644
--- a/src/app/src/main/java/net/micode/notes/data/Notes.java
+++ b/src/app/src/main/java/net/micode/notes/data/Notes.java
@@ -66,6 +66,7 @@ public class Notes {
      */
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
 
+    //数据库表列名定义
     public interface NoteColumns {
         /**
          * The unique ID for a row
diff --git a/src/app/src/main/java/net/micode/notes/data/NotesProvider.java b/src/app/src/main/java/net/micode/notes/data/NotesProvider.java
index edb0a60..4a1a27d 100644
--- a/src/app/src/main/java/net/micode/notes/data/NotesProvider.java
+++ b/src/app/src/main/java/net/micode/notes/data/NotesProvider.java
@@ -35,6 +35,7 @@ import net.micode.notes.data.Notes.NoteColumns;
 import net.micode.notes.data.NotesDatabaseHelper.TABLE;
 
 
+//数据访问类
 public class NotesProvider extends ContentProvider {
     private static final UriMatcher mMatcher;
 
diff --git a/src/app/src/main/java/net/micode/notes/ui/NoteItemData.java b/src/app/src/main/java/net/micode/notes/ui/NoteItemData.java
index fa4b3ec..d9d7004 100644
--- a/src/app/src/main/java/net/micode/notes/ui/NoteItemData.java
+++ b/src/app/src/main/java/net/micode/notes/ui/NoteItemData.java
@@ -220,6 +220,6 @@ public class NoteItemData {
     }
 
     public static int getNoteType(Cursor cursor) {
-        return cursor.getInt(TYPE_COLUMN);
+            return cursor.getInt(TYPE_COLUMN);
     }
 }
diff --git a/src/app/src/main/java/net/micode/notes/ui/NotesListActivity.java b/src/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
index 4880b8e..a96bd53 100644
--- a/src/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
+++ b/src/app/src/main/java/net/micode/notes/ui/NotesListActivity.java
@@ -423,6 +423,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt
                 }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC");
     }
 
+    //后台SQL操作类
     private final class BackgroundQueryHandler extends AsyncQueryHandler {
         public BackgroundQueryHandler(ContentResolver contentResolver) {
             super(contentResolver);
diff --git a/src/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java b/src/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java
index be8f50f..3d28fcc 100644
--- a/src/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java
+++ b/src/app/src/main/java/net/micode/notes/ui/NotesListAdapter.java
@@ -168,6 +168,7 @@ public class NotesListAdapter extends CursorAdapter {
         calcNotesCount();
     }
 
+    /** 计算当前文件夹下笔记数量 */
     private void calcNotesCount() {
         mNotesCount = 0;
         for (int i = 0; i < getCount(); i++) {