界面大概是这样
https://download.csdn.net/download/yclilian/9184853https://download.csdn.net/download/yangzhong123/1212053
关键代码
删
修
图片说明](https://img-ask.csdn.net/upload/201805/09/1525847502_541423.png)图片说明](https://img-ask.csdn.net/upload/201805/09/1525847492_646743.png)
