Update Main.cpp

remove getchar
Merge pull request #44 from lmykyo/master

A message handler for MSG_RequestEnterClassroom.
客户端: 增加进入房间的逻辑和UT
恢复ResDefine.h控件分组
修复编译不通过问题
Merge pull request #45 from lmykyo/master

add some comments of testREC
resolve compile errors
remove xml dependency in server
move server's linux build system to CMake
I have completed UTProduce
use vnoc's boost
Merge pull request #46 from VNOC/xosdy

将server Linux下的编译系统移植到CMake
Merge pull request #47 from vnoc-YeZi/master

搞定了UTProduce