diff --git a/src/java/net/micode/notes/gtask/exception/ActionFailureException.java b/src/java/net/micode/notes/gtask/exception/ActionFailureException.java
index 2ede071..dedb8bd 100644
--- a/src/java/net/micode/notes/gtask/exception/ActionFailureException.java
+++ b/src/java/net/micode/notes/gtask/exception/ActionFailureException.java
@@ -57,4 +57,4 @@ serialVersionUID：用于序列化和反序列化时的版本控制。
 ActionFailureException()：构造一个无参数的 ActionFailureException。
 ActionFailureException(String paramString)：构造一个带有详细信息的 ActionFailureException。
 ActionFailureException(String paramString, Throwable paramThrowable)：构造一个带有详细信息和原因的 ActionFailureException。
- */
+ */
\ No newline at end of file
diff --git a/src/java/net/micode/notes/model/Note.java b/src/java/net/micode/notes/model/Note.java
index 23918ac..35f62df 100644
--- a/src/java/net/micode/notes/model/Note.java
+++ b/src/java/net/micode/notes/model/Note.java
@@ -73,6 +73,9 @@ public class Note {
         return noteId;
     }
 
+    /**
+     * 构造函数，初始化便签差异值和便签数据。
+     */
     public Note() {
         mNoteDiffValues = new ContentValues();
         mNoteData = new NoteData();
@@ -188,6 +191,9 @@ public class Note {
         private ContentValues mCallDataValues; // 通话数据值
         private static final String TAG = "NoteData"; // 日志标签
 
+        /**
+         * 构造函数，初始化文本数据和通话数据。
+         */
         public NoteData() {
             mTextDataValues = new ContentValues();
             mCallDataValues = new ContentValues();
diff --git a/src/java/net/micode/notes/model/WorkingNote.java b/src/java/net/micode/notes/model/WorkingNote.java
index 8de578f..3b28788 100644
--- a/src/java/net/micode/notes/model/WorkingNote.java
+++ b/src/java/net/micode/notes/model/WorkingNote.java
@@ -474,4 +474,4 @@ public class WorkingNote {
          */
         void onCheckListModeChanged(int oldMode, int newMode);
     }
-}
+}
\ No newline at end of file