save project

snake.py

@@ -16,12 +16,23 @@ body = pygame.image.load('body.png')
 
 x,y=240,120
 position=[(210,120),(180,120),(180,90),(x,y)]
+setheading = "right"
 
 while True:
     for event in pygame.event.get():
         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"
+
     x+=30
     position.append((x,y))
     position.pop(0)