diff --git a/src/Notes-master/src/net/micode/notes/data/Contact.java b/src/Notes-master/src/net/micode/notes/data/Contact.java
index ba02a64..d97ac5d 100644
--- a/src/Notes-master/src/net/micode/notes/data/Contact.java
+++ b/src/Notes-master/src/net/micode/notes/data/Contact.java
@@ -25,16 +25,10 @@ import android.util.Log;
 
 import java.util.HashMap;
 
-/**
- * 联系人工具类，用于根据电话号码获取联系人姓名
- */
 public class Contact {
-    // 联系人缓存，避免重复查询
     private static HashMap<String, String> sContactCache;
-    // 日志标签
     private static final String TAG = "Contact";
 
-    // 查询联系人的SQL条件，用于通过电话号码查找联系人
     private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER
     + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'"
     + " AND " + Data.RAW_CONTACT_ID + " IN "
@@ -42,12 +36,6 @@ public class Contact {
             + " FROM phone_lookup"
             + " WHERE min_match = '+')";
 
-    /**
-     * 根据电话号码获取联系人姓名
-     * @param context 上下文对象
-     * @param phoneNumber 电话号码
-     * @return 联系人姓名，若未找到则返回null
-     */
     public static String getContact(Context context, String phoneNumber) {
         if(sContactCache == null) {
             sContactCache = new HashMap<String, String>();