save project

snake.py

@@ -13,11 +13,29 @@ 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.type == locals.KEYDOWN:
+            if event.type == locals.K_RIGHT and setheading !="left"
+                setheading = 'right'
+            if event.type == locals.K_LEFT and setheading !="right"
+                setheading = 'left'
+            if event.type == locals.K_UP and setheading !="down"
+                setheading = 'up'
+            if event.type == locals.K_DOWN and setheading !="up"
+                setheading = 'down'
+    if setheading == "right"
+        x  += 30
+    elif setheading == "left"
+
+
+
+
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
     # 将贪吃蛇画上去