save project

snake.py

@@ -31,13 +31,13 @@ while True:
             # 接收到退出事件后退出程序
             # 接收到退出事件后退出程序
             exit()
             exit()
         if event.type == locals.KEYDOWN:
         if event.type == locals.KEYDOWN:
-            if event.key == locals.K_RIGHT and setheading != "left":
+            if event.key == locals.K_RIGHT and snake_head != left:
                 snake_head = right
                 snake_head = right
-            if event.key == locals.K_LEFT and setheading != "right":
+            if event.key == locals.K_LEFT and snake_head != right:
                 snake_head = left
                 snake_head = left
-            if event.key == locals.K_UP and setheading != "down":
+            if event.key == locals.K_UP and snake_head != down:
                 snake_head = up
                 snake_head = up
-            if event.key == locals.K_DOWN and setheading != "up":
+            if event.key == locals.K_DOWN and snake_head != up:
                 snake_head = down
                 snake_head = down
 
 
     # 设置贪吃蛇的头部坐标
     # 设置贪吃蛇的头部坐标