利用winsock控件在两台计算机之间传输文件，实现了断点续传功能，在别人传输文件的源码的基础上我又写上的断点续传的部分和判断传输完成的功能。再次感谢原作者（是谁我忘记了）-Use winsock control in transferring files between two computers to achieve HTTP functions, transfer files to others based on the source I also write on the part of HTTP and judge the functions of the transfer is complete. Once again thank the original author (who I forgot)