一个完整的文字聊天，视频/语音传输，电子白板，共享文件的使用RTC技术编写的程序。（使用前请下载RTC CLIENT SDK API，现在最新版是1。3，大家可以在微软的网站上下载）-a complete text chat, video / voice transmission, electronic whiteboards, shared use of the RTC technical preparation process. (Download the use of the former RTC Client SDK API, the latest version is the one. 3, we can at Microsoft's Web site)