diff --git a/MCU/MCU_REAL _FINAL/block.c b/MCU/MCU_REAL _FINAL/block.c
index 965aea1..8fdb6f0 100644
--- a/MCU/MCU_REAL _FINAL/block.c	
+++ b/MCU/MCU_REAL _FINAL/block.c	
@@ -90,7 +90,7 @@ void genPiece()
 //动作是否在屏幕内
 unsigned char isIegal(char i, char j)
 {
-  if(i >= 0 && i < MAX_X && j >= 0 && j < MAX_Y && base[i][j] == 0)
+  if(i >= 0 && i < MAX_X && j >= 0 && j < MAX_Y && base[i][j] != 1)
     return 1;
   return 0;
 }
@@ -172,7 +172,6 @@ void moveLeftPiece()
         {
           base[i - 1][j] = 2;
           base[i][j] = 0;
-          return;
         }
 }
 void moveRightPiece()