save project

snake.py

@@ -14,12 +14,21 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
-
+setheading = 'right'
 while True:
 while True:
     for event in pygame.event.get():
     for event in pygame.event.get():
         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()
+        if event.tape == 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 
     x+=30 
     position.append((x,y)) 
     position.append((x,y)) 
     position.pop(0)
     position.pop(0)