save project

snake.py

@@ -29,7 +29,7 @@ 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 setheading = "left":
                 setheading = 'right'
                 setheading = 'right'
                 snake_head = right
                 snake_head = right
             if event.key == locals.K_LEFT and setheading != "right":
             if event.key == locals.K_LEFT and setheading != "right":