用C#实现的录屏软件，录制为AVI格式。获取文件大小及帧数，然后输入开始帧数和结束帧数，单击“分割”按钮，即可分割该视频文件。-C# implementation with screen recording software, recording to AVI format. Get the file size and number of frames, and then enter the start and end frame number of frames, click the &quo