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snake.py

@@ -63,7 +63,7 @@ while True:
          position.pop(0)
          position.pop(0)
     if x<0 or x>630 or y<0 or y>450:
     if x<0 or x>630 or y<0 or y>450:
         shengming-=1
         shengming-=1
-    if  shengming
+   
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去