程序用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。-Program to open the file with fopen and file transfer program with the socket, cross-platform, run the file, please note the source file name and path are correct, the main