套接字I/O模型s e l e c t（选择）模型是Wi n s o c k中最常见的I / O模型。之所以称其为“ s e l e c t模型”，是由于

它的“中心思想”便是利用s e l e c t函数，实现对I / O的管理！-Socket I/O model select (selection) model is Wi nsock the most common I/O model. It is called " select model" , because it' s " central idea"　is to use the select function to achieve the I/O management!