save project

my_Tetris.py

@@ -64,14 +64,19 @@ while True:
             exit()
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_RIGHT:     # 向右
-                if center[1] < 15:
-                    center[1] += 1
+                center[1] = center[1]+1
+                if check(center)==False:
+                    center[1]=center[1] - 1
+                    
             elif event.key == locals.K_LEFT:    # 向左
-                if center[1] > 1:
-                    center[1] -= 1
+                center[1] = center[1]-1
+                if check(center)==False:
+                    center[1]=center[1] + 1
+                    
             elif event.key == locals.K_DOWN:    # 向下
-                if center[0] < 25:
-                    center[0] += 1
+                center[0] = center[0]+1
+                if check(center)==False:
+                    center[0]=center[0] - 1
 
     # 将背景图画上去
     screen.blit(background, (0, 0))