save project

my_Tetris.py

@@ -64,6 +64,8 @@ while True:
             elif event.key == locals.K_LEFT:    # 向左
                 if center[1] > 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