删除指定位置某类文件中指定文本代码，实战中用得到的。比如：某网站中毒，被添加了病毒代码，俗称挂马，要手动找<js>的病毒代码很辛苦，可用这一程序。-Certain types of files to delete the specified location, specify the text code combat with. For example: a site poisoning, the virus code is added, commonly known as the