diff --git a/MCU/MCU_REAL_FINAL/menu.c b/MCU/MCU_REAL_FINAL/menu.c
index 244492c..3a9a366 100644
--- a/MCU/MCU_REAL_FINAL/menu.c
+++ b/MCU/MCU_REAL_FINAL/menu.c
@@ -2,6 +2,7 @@
 #include "display.h"
 #include "delay.h"
 #include "draw.h"
+#include "eeprom.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include "block.h"
@@ -24,7 +25,7 @@ Menu* LAST = NULL; //
 
 code unsigned int ver _at_ 0x7ffe;
 enum OPR opr = idle;
-static unsigned char local[2] = {0};
+static unsigned int local[4] = {0};
 unsigned int score;
 unsigned int bestScore[10];
 extern enum GS blockGameStatus;
@@ -163,6 +164,8 @@ void m_about(struct _menu* this)
   if(LAST != &M_ABOUT)
     {
       LAST = &M_ABOUT;
+      local[2] = 0;
+      local[3] = 0;
       delayms(2000);
       drawNAME(); 		 		//绘制名字
       delayms(2000);
@@ -176,12 +179,49 @@ void m_about(struct _menu* this)
       drawSUPNUM(29, 6, (ver % 100) / 10);
       drawSUPNUM(38, 6, ver % 10);
     }
-
   if(opr == confirm)
     {
       opr = idle;
       NOW = &M_MAINMENU;				//转向下一菜单
       clear();
+			//若满足隐藏条件，清空排行榜
+      if(local[2] >= 10 && local[3] >= 10)
+        {
+          IapProgramByte(IAP_ADDRESS + 0, 0);
+          IapProgramByte(IAP_ADDRESS + 1, 0);
+          IapProgramByte(IAP_ADDRESS + 2, 0);
+          IapProgramByte(IAP_ADDRESS + 3, 0);
+          IapProgramByte(IAP_ADDRESS + 4, 0);
+          IapProgramByte(IAP_ADDRESS + 5, 0);
+          IapProgramByte(IAP_ADDRESS + 6, 0);
+          IapProgramByte(IAP_ADDRESS + 7, 0);
+          IapProgramByte(IAP_ADDRESS + 8, 0);
+          IapProgramByte(IAP_ADDRESS + 9, 0);
+          IapProgramByte(IAP_ADDRESS + 10, 0);
+          IapProgramByte(IAP_ADDRESS + 11, 0);
+          IapProgramByte(IAP_ADDRESS + 12, 0);
+          IapProgramByte(IAP_ADDRESS + 13, 0);
+          IapProgramByte(IAP_ADDRESS + 14, 0);
+          IapProgramByte(IAP_ADDRESS + 15, 0);
+          IapProgramByte(IAP_ADDRESS + 16, 0);
+          IapProgramByte(IAP_ADDRESS + 17, 0);
+          IapProgramByte(IAP_ADDRESS + 18, 0);
+          IapProgramByte(IAP_ADDRESS + 19, 0);
+        }
+      local[2] = 0;
+      local[3] = 0;
+    }
+  if(opr == left)
+    {
+      local[2]++;
+      opr = idle;
+      delayms(20);
+    }
+  if(opr == right)
+    {
+      local[3]++;
+      opr = idle;
+      delayms(20);
     }
 }