1.在项目中添加引入:COM组件的Microsoft Shell Controls And Automation
2.在引用中找到Shell32,点击右键,在属性中将“嵌入互操作类型”的值改为“false”
3.代码
1 public static string GetVoiceTime(string voicePath)//voicePath为语音文件路径 2 { 3 string path = HttpContext.Current.Server.MapPath(voicePath);//将虚拟路径转换为绝对路径,这里必须用绝对路径! 4 string dirName = Path.GetDirectoryName(path);//获取文件夹名称 5 string voiceName = Path.GetFileName(path);//获取文件名 6 FileInfo file = new FileInfo(path); 7 ShellClass sh = new ShellClass(); 8 Folder dir = sh.NameSpace(dirName); 9 FolderItem item = dir.ParseName(voiceName); 10 string songTime = dir.GetDetailsOf(item, 27);//win7参数为27 11 return songTime; 12 }