一个小巧好用的互联网在线更新工具，使用FTP下载，可以自行配置FTP服务器信息(当然为了安全起见可以直接写到程序中,以便分发).支持显示下载进度，下载后支持即时执行更新，也可以自定义启动程序。主要这个代码不复杂，比较方便易用，没有其他第三方控件和API函数，在线更新的功能都具有。-A compact and easy to use Internet online update tool, use FTP to download, you can configure their own FTP server information (of course, for security purposes can be written directly to the program for distribution). Support display download progress, support instant download after performing an update, you can also custom launcher. The main code is not complicated, more convenient to use, no other third-party controls and API functions, the online update feature have.