save project

snake.py

@@ -25,11 +25,13 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
-        else event.type == locals.KEYDOWN:
+        elif event.type == locals.KEYDOWN:
+
             if event.key == locals.K_RIGHT and setheading !="left":
                 setheading = 'right'
                 snake_head = right
-            if event.key == locals.K_RIGHT and setheading !="right"
+
+            if event.key == locals.K_LEFT and setheading !="right":
                 setheading ='left'
                 snake_head = left