一个用C#编写的小工具，它的功能与linux下的tee功能和命令行相当，主要用于将命令行输出拷贝到文件，同时也回显到命令行-With the preparation of a small C# tool, its function and tee under linux command-line features and a considerable, mainly used to copy the command line output to a file, but also to the command line echo