新建文件夹

代码说明：

说明：  ◎ 为所有socket函数调用添加错误处理代码； ◎ 范例中服务器地址和端口是固定值，请你将它们改成——允许用户以参数形式从命令行输入； ◎ 范例中客户机发送的是固定文本”Hello Network!”，请改成——允许用户输入字符串，按回车发送；实现循环，直至客户机输入“bye”退出； ◎ 服务器迭代地处理客户机：一个客户机退出后、才接受下一个，按Ctrl+C可以终止服务器程序。(Add error handling code for all socket function calls; In the example, the server address and port are fixed values. Please change them to - allow users to input from the command line in the form of parameters; In the example, the client sends the fixed text "Hello network!", please change it to -- allow the user to input the string and press enter to send; realize the loop until the client enters "Bye" to exit; Server processes clients iteratively: one client exits before accepting the next. Press Ctrl + C to terminate the server program.)