save project

snake.py

@@ -19,7 +19,14 @@ while True:
         if event.type == locals.QUIT:
         if event.type == locals.QUIT:
             # 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()
-    x += 30      
+        if event.type == locals.KEYDOWN:
+            if event.key == locals.K_LEFT and setheading l="left"
+               setheading = 'right'
+         if event.key == locals.K_LEFT and setjeading l="right"      
+            setheading = 'left'
+
+    if setheading == "right":
+       x -= 30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     #
     #