fopen打开文件并用socket传输文件的程序，可以跨平台，运行时请注意文件中的源文件的文件名及路径是否正确，需在main函数中改下参数就ok-fopen to open the file and transfer files using socket procedures, can be cross-platform, run-time Please note that the source document file name and path is correct, in the mai