save project

snake.py

@@ -15,13 +15,20 @@ body = pygame.image.load('body.png')
 x = 240
 y = 120
 FPSC=pygame.time.Clock()
-
+setheding = "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()
-    x+=30
+        if event.key == locals.K_DOWN and setheding!="up":
+            setheding="down"
+        if event.key == locals.K_UP and setheding!="down":
+            setheding="up"
+        if event.key == locals.K_LEFT and setheding!="right":
+            setheding="left"
+        if event.key == locals.K_RIGHT and setheding!="left":
+            setheding="right"
     PA.append((x,y))
     PA.pop(0)
     # 将背景图画上去