auto save

snake.py

@@ -15,21 +15,26 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 body = pygame.image.load('body.png')
 
 
 x, y = 240, 120  # 初始化贪吃蛇头的坐标设置xy为240，120
 x, y = 240, 120  # 初始化贪吃蛇头的坐标设置xy为240，120
+# 创建列表存储贪吃蛇的初始坐标三段身体以及蛇头的坐标
+position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
 
 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()
-    x += 30           # 每次循环都将x坐标增加一个格子的长度30        
+    x += 30           # 每次循环都将x坐标增加一个格子的长度30    
+    # 将贪吃蛇头的新坐标追加进列表
+    position.append((x, y))
+    position.pop(0)    
     # 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
-    screen.blit(right, (x, y))
+    screen.blit(right, position[-1])  # 将列表的第一个元素删除作为蛇头的坐标
     # 将贪吃蛇的身体画上去
     # 将贪吃蛇的身体画上去
-    screen.blit(body, (210, 120))
-    screen.blit(body, (180, 120))
-    screen.blit(body, (180, 90))
+    # 用for循环取出身体坐标len()获取列表长度-1，得到的值通过range()函数生成列表下标
+    for i in range(len(position)-1):
+        screen.blit(body, position[i])  # 取出列表里所有身体坐标进行渲染
     # 将果实画上去
     # 将果实画上去
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面