C#检测磁盘是否准备好，也就是是否安装了磁盘，选择下拉框中的盘符，然后点击“检测”按钮，程序会告诉你该磁盘是否准备好-C# detect the disk is ready, that is, whether the installation disk, select the drive letter drop-down box, then click on the " test" button, the program will tell you that the disk