遍历文件夹

//遍历文件夹    public void SearchFile(string fileDirectory)    {        DirectoryInfo dir = new DirectoryInfo(fileDirectory);        FileSystemInfo[] f = dir.GetFileSystemInfos();        foreach (FileSystemInfo i in f)        {            //如果是文件夹            if (i is DirectoryInfo)            {                SearchFile(i.FullName);            }            else            {                FileInfo file = new FileInfo(i.FullName);                StringBuilder strFile = new StringBuilder();                strFile.Append("文件名:" + file.Name + "   ");                strFile.Append("文件路径:" + file.FullName + "  ");                strFile.Append("文件大小:" + file.Length.ToString() + "<br/>");                Response.Write(strFile.ToString());            }        }    }