ssd8 的练习4答案 老师给的, 正确就不用说啦-4 answers ssd8 practice teacher to correct you on, needless to say ...

用在局域网中完成机子之间的数据传递，文件传输，这是一个非常标准的例子，给初学者参考最好不过啦！-Used in local area network to complete data transfer between the machine, file transfer, this is a very standard example of the best reference for beginners, but啦!