实现ftp的上传、下载、删除、创建目录、删除目录、移动等功能并且可以断点续传和多线程上传下载-Achieve ftp upload, download, delete, create directories, delete directories, move and other functions and can be multi-threaded HTTP, and uploading and downloading

C# 使用PlaySound实现多线程播放声音。-MultiThreading play sound