save project

snake.py

@@ -14,6 +14,7 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
 x, y = 240, 120
+position = [(180,90), (180,120), (210,120), (x,y)]
 
 while True:
     for event in pygame.event.get():
@@ -21,15 +22,20 @@ while True:
             # 接收到退出事件后退出程序
             exit()
     x += 30
-    y += 30
+    position.append((x,y))
+    position.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, position[-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(position)-1):
+        screen.blit(body, position[i])
+
+
+    #screen.blit(body, (210, 120))
+    #screen.blit(body, (180, 120))
+    #screen.blit(body, (180, 90))
     # 将果实画上去
     screen.blit(food, (240, 150))
     # 刷新画面