此聊天程序比较规范，而且代码量也比较大，比以前的聊天程序要专业，功能要多一些，除可以正常的聊天外，还附带了一些其它的小程序，比如提醒和日程等功能-This chat programs more standardized, but the code volume larger than the previous chat program should be professional, functional to be a little more, in addition to the normal