auto save

snake.py

@@ -22,7 +22,24 @@ 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_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=="right"
+        x +=30
+    if setheading=="lest"
+        x +=30
+    if setheading=="right"
+        x +=30
+    if setheading=="right"
+        x +=30
     position.append((x,y))
     position.append((x,y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去