diff --git a/my_Tetris.py b/my_Tetris.py
index 0e1a8e0..d39eb5b 100644
--- a/my_Tetris.py
+++ b/my_Tetris.py
@@ -66,8 +66,8 @@ while True:
                     center[1] -= 1
             elif event.key == locals.K_LEFT:    # 向左
                 center[1] -= 1
-                    if check(center)==False:
-                        center[1] += 1
+                if check(center)==False:
+                    center[1] += 1
             elif event.key == locals.K_DOWN:    # 向下
                 center[0] += 1
                 if check(center)==False: