save project

snake.py

@@ -7,6 +7,7 @@ pygame.init()
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 x,y=240,120
+dog=[(210,120),(180,120),(180,90),(x,y)]
 m=pygame.time.Clock()
 # 背景
 background = pygame.image.load('bg.png')
@@ -20,17 +21,19 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     x+=30
+    dog.append((x,y))
+    dog.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (x,y))
+    screen.blit(right, dog[-1])
     # 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))
+    for i in range(len(dog)-1):
+        screen.blit(body,dog[i])
+
     # 将果实画上去
     screen.blit(food, (360, 300))
     # 刷新画面
     m.tick(3)
     pygame.display.update()
-    
\ No newline at end of file
+