save project

snake.py

@@ -6,19 +6,43 @@ pygame.init()
 
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
-
+a=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
-x,y=210, 120
+lift=pygame.image.load('lift.png')
+up=pygame.image.load('up.png')
+down=pygame.image.load('down.png')
+right_a='right'
+right_b=right
+x,y=240, 120
 a_b=[(120,120),(150,120),(180,120),(x,y)]
 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()
+        elif event.type == locals.KEYDOWN:
+            if event.key ==locals.K_RIGHT and right_a !='left':
+                right_a=='right' 
+                right_b=right
+            if event.key ==locals.K_LEFT and right_a !='right':
+                right_a=='left'
+                right_b==left
+            if event.key ==locals.K_DOWN and right_a !='up':
+                right_a=='down'
+                right_b==down
+            if event.key ==locals.K_ and right_a !='down':
+                right_a=='up'
+                right_b==up
+
+    if right_a=='light':
+        x+=30
+    if left_a=='left':
+        x-=30
+
     x+=30
     a_b.append((x,y))
     a_b.pop(0)