VB实现屏幕录像功能，请在测试电脑上安装Windows Media Encorder 9，否则可能无法正常实现录像功能，本程序还可以改造成在线直播程序-VB to achieve the function of the screen video, please install Media Encorder Windows 9 on the test computer, otherwise it may not be able to achieve the normal video function, the program can also be converted into online live program