diff --git a/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java b/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java
index 2afe2a8..e1f6e80 100644
--- a/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java
+++ b/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java
@@ -39,18 +39,18 @@ import java.util.Map;
 
 public class NoteEditText extends EditText {
     private static final String TAG = "NoteEditText";
-    private int mIndex;
-    private int mSelectionStartBeforeDelete;
+    private int mIndex; // 当前索引
+    private int mSelectionStartBeforeDelete; // 删除前的光标位置
 
-    private static final String SCHEME_TEL = "tel:" ;
-    private static final String SCHEME_HTTP = "http:" ;
-    private static final String SCHEME_EMAIL = "mailto:" ;
+    private static final String SCHEME_TEL = "tel:"; // 电话号码链接的Scheme
+    private static final String SCHEME_HTTP = "http:"; // 网页链接的Scheme
+    private static final String SCHEME_EMAIL = "mailto:"; // 邮件链接的Scheme
 
-    private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>();
+    private static final Map<String, Integer> sSchemaActionResMap = new HashMap<String, Integer>(); // 存储链接Scheme和对应操作资源的映射
     static {
-        sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel);
-        sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web);
-        sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email);
+        sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); // 将电话号码链接的Scheme和对应的操作资源ID放入映射中
+        sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); // 将网页链接的Scheme和对应的操作资源ID放入映射中
+        sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email); // 将邮件链接的Scheme和对应的操作资源ID放入映射中
     }
 
     /**
@@ -58,44 +58,51 @@ public class NoteEditText extends EditText {
      */
     public interface OnTextViewChangeListener {
         /**
-         * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens
-         * and the text is null
+         * 当按下删除键{@link KeyEvent#KEYCODE_DEL}并且文本为空时，删除当前编辑文本
+         *
+         * @param index 当前编辑文本的索引
+         * @param text 当前编辑文本的内容
          */
         void onEditTextDelete(int index, String text);
 
         /**
-         * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER}
-         * happen
+         * 当按下回车键{@link KeyEvent#KEYCODE_ENTER}时，在当前编辑文本后添加一个新的编辑文本
+         *
+         * @param index 当前编辑文本的索引
+         * @param text 当前编辑文本的内容
          */
         void onEditTextEnter(int index, String text);
 
         /**
-         * Hide or show item option when text change
+         * 当文本发生变化时，隐藏或显示项目选项
+         *
+         * @param index 当前编辑文本的索引
+         * @param hasText 文本是否不为空
          */
         void onTextChange(int index, boolean hasText);
     }
 
-    private OnTextViewChangeListener mOnTextViewChangeListener;
+    private OnTextViewChangeListener mOnTextViewChangeListener; // 文本视图变化的监听器
 
     public NoteEditText(Context context) {
         super(context, null);
-        mIndex = 0;
+        mIndex = 0; // 初始化当前索引为0
     }
 
     public void setIndex(int index) {
-        mIndex = index;
+        mIndex = index; // 设置当前索引
     }
 
     public void setOnTextViewChangeListener(OnTextViewChangeListener listener) {
-        mOnTextViewChangeListener = listener;
+        mOnTextViewChangeListener = listener; // 设置文本视图变化的监听器
     }
 
     public NoteEditText(Context context, AttributeSet attrs) {
-        super(context, attrs, android.R.attr.editTextStyle);
+        super(context, attrs, android.R.attr.editTextStyle); // 调用父类构造方法
     }
 
     public NoteEditText(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
+        super(context, attrs, defStyle); // 调用父类构造方法
         // TODO Auto-generated constructor stub
     }