auto save

snake.py

@@ -12,18 +12,48 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+up = pygame.image.load('up.png')
+left = pygame.image.load('left.png')
+down = pygame.image.load('down.png')
+
 x = 240
 y = 120
-snake = [(180, 90), (180, 120), (210, 120),(x,y)]
-
+position = [(180, 90), (180, 120), (210, 120),(x,y)]
+set = "right"
+snake = 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.type == locals.KEYDOWN:
+            if event.key == locals.K_d and set != 'left':
+                set = 'right'
+                snake = right
+            if event.key == locals.K_a and set != 'right':
+                set = 'left'
+                snake = left
+            if event.key == locals.K_w and set != 'down':
+                set = 'up'
+                snake = up
+            if event.key == locals.K_s and set != 'up':
+                set = 'down'
+                snake = down
+    if set == 'right':
+        x +=30
+    if set == 'left':
+        x -=30
+    if set == 'up':
+        y -=30
+    if set == 'down':
+        y +=30
+    position.append((x,y))
+    position.pop(0)
     screen.blit(background,(0,0))
+    screen.blit(snake,  position[-1])
+    for i in range(len(position)-1):
+        screen.blit(body,position[i]) 
     screen.blit(food, (360, 300))
     # 刷新画面
     pygame.display.update()