本人写的局域网小工具，可自动检测用户上线，包括局域网内聊天和局域网文件及文件夹共享，支持批量下载，欢迎大家测试-I wrote a small tool for local area networks, can automatically detect the user on-line, including local area network LAN chat and share files and folders, support batch download, Welcome to the