diff --git a/src/main/java/net/micode/notes/model/WorkingNote.java b/src/main/java/net/micode/notes/model/WorkingNote.java
index 4e5a4e7..caaed12 100644
--- a/src/main/java/net/micode/notes/model/WorkingNote.java
+++ b/src/main/java/net/micode/notes/model/WorkingNote.java
@@ -187,16 +187,24 @@ public class WorkingNote {
         return new WorkingNote(context, id, 0);
     }
 
-    public synchronized boolean saveNote() {
-        if (isWorthSaving()) {
-            if (!existInDatabase()) {
+    public synchronized boolean saveNote() {// TODO: 2023/12/19 要仔细溯源看看
+         /**
+          * @method:  saveNote
+          * @description: 保存工作便签，当保存成功时，返回true，保存失败（）
+          * @date: 2023/12/19 23:44
+          * @author: zhoukexing
+          * @param: []
+          * @return: boolean
+          */
+        if (isWorthSaving()) { // 判断是否有新内容-->是否值得注释 @zhoukexing 2023/12/19 23:45
+            if (!existInDatabase()) { // 判断是否在数据库里存在==是新便签还是已有便签 @zhoukexing 2023/12/19 23:45
                 if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
                     Log.e(TAG, "Create new note fail with id:" + mNoteId);
                     return false;
                 }
             }
 
-            mNote.syncNote(mContext, mNoteId);
+            mNote.syncNote(mContext, mNoteId); // 和远程同步 @zhoukexing 2023/12/19 23:46
 
             /**
              * Update widget content if there exist any widget of this note
@@ -208,7 +216,7 @@ public class WorkingNote {
             }
             return true;
         } else {
-            return false;
+            return false; // 没有需要保存的，就返回false @zhoukexing 2023/12/19 23:46
         }
     }
 
diff --git a/src/main/java/net/micode/notes/ui/NoteEditActivity.java b/src/main/java/net/micode/notes/ui/NoteEditActivity.java
index 619e70b..03aef1b 100644
--- a/src/main/java/net/micode/notes/ui/NoteEditActivity.java
+++ b/src/main/java/net/micode/notes/ui/NoteEditActivity.java
@@ -557,8 +557,17 @@ public class NoteEditActivity extends Activity //NOTE: extends--单继承，但
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
+         /**
+          * @method:  onOptionsItemSelected
+          * @description: 覆写了Activity.java里的onOptionsItemSelected，路线是menu-->item，
+          * 这里就是处理识别到的item
+          * @date: 2023/12/19 23:35
+          * @author: zhoukexing
+          * @param: [item]
+          * @return: boolean
+          */
         int itemId = item.getItemId();
-        if (itemId == R.id.menu_new_note) {
+        if (itemId == R.id.menu_new_note) { // 从item到itemid，用itemid导向对应的不同的动作 @zhoukexing 2023/12/19 23:38
             createNewNote();
         } else if (itemId == R.id.menu_delete) {
             AlertDialog.Builder builder = new AlertDialog.Builder(this);
@@ -623,13 +632,23 @@ public class NoteEditActivity extends Activity //NOTE: extends--单继承，但
     }
 
     private void createNewNote() {
+         /**
+          * @method:  createNewNote
+          * @description: 从编辑页面，点击“add note”会进入这个创建便签的方法。
+          * 此方法会保存并结束当前便签，用NoteEditActivity类实例化一个新的intent（活动意图），
+          * 设置行为和指定报错对象后，启动intent活动意图
+          * @date: 2023/12/19 23:03
+          * @author: zhoukexing
+          * @param: []
+          * @return: void
+          */
         // Firstly, save current editing notes
         saveNote();
 
         // For safety, start a new NoteEditActivity
         finish();
         Intent intent = new Intent(this, NoteEditActivity.class); //Q: 在类的内部，还没有实现完全时，启动这个类自己？@zkx 2023/12/17
-        intent.setAction(Intent.ACTION_INSERT_OR_EDIT);
+        intent.setAction(Intent.ACTION_INSERT_OR_EDIT); // 创建便签后，要插入或者编辑。Q: 为什么要插入 @zhoukexing 2023/12/19 22:57
         intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId());
         startActivity(intent);
     }
@@ -865,8 +884,16 @@ public class NoteEditActivity extends Activity //NOTE: extends--单继承，但
     }
 
     private boolean saveNote() {
+         /**
+          * @method:  saveNote
+          * @description: 获取工作文本，调用真正的保存便签的方法，设置便签在list界面的位置
+          * @date: 2023/12/19 23:50
+          * @author: zhoukexing
+          * @param: []
+          * @return: boolean
+          */
         getWorkingText();
-        boolean saved = mWorkingNote.saveNote();
+        boolean saved = mWorkingNote.saveNote();// TODO: 2023/12/19 工作便签下的saveNote 
         if (saved) {
             /**
              * There are two modes from List view to edit view, open one note,
@@ -875,7 +902,8 @@ public class NoteEditActivity extends Activity //NOTE: extends--单继承，但
              * new node requires to the top of the list. This code
              * {@link #RESULT_OK} is used to identify the create/edit state
              */
-            setResult(RESULT_OK);
+            setResult(RESULT_OK); // RESULT_OK指示将该便签保存到list界面的顶端（因为这是新建的便签） @zhoukexing 2023/12/19 23:41
+            //Q: 这个setResult只在这里调用了，怎么实现的 @zkx 2023/12/19
         }
         return saved;
     }