这是mfc写的，写的关于传送文件的。要先输入文件来源主机ip，然后点击接收文件。然后才能输入要发送的主机ip，然后选择文件 点发送。-This is the mfc write, write about sending files. First input file, the source host ip, and then click to receive the file. Before they can enter the host to send ip, and then select