save project

snake.py

@@ -21,6 +21,16 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+        if event.type==locals.KEYDOWN:
+            if event.key==locals.K_RIGHT and setheading!="left":
+                setheading='right'
+            if event.key==locals.K_LEFT and setheading!="right":
+                setheading='left'
+            if event.key==locals.K_UP and setheading!="down":
+                setheading='up'
+            if event.key==locals.K_DOWN and setheading!="up":
+                setheading='down'
+    if setheading       
         x+=30
     position.append((x,y))
     position.pop(0)