save project

snake.py

@@ -23,12 +23,14 @@ while True:
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+    s.append((x,y))
+    s.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right,l[-1])
+    screen.blit(right,s[-1])
     for i in range(len(s)-1):
-        screen.blit(body, s[-1])
+        screen.blit(body, s[i])
     # 将贪吃蛇的身体画上去
     # screen.blit(body, (210, 120))
     # screen.blit(body, (180, 120))