ASP.NET删除檔案

string origraphurl = context.Server.MapPath(origraph);//origraphurl:相對路徑,context.Server.MapPath(origraph):實體路徑

    string thumbnailurl = context.Server.MapPath(thumbnail);//thumbnailurl:相對路徑,context.Server.MapPath(thumbnailurl):實體路徑

    System.IO.File.Delete(origraphurl);
    log.Info("删除編号為"+ picidarr + "的圖檔原圖");

    System.IO.File.Delete(thumbnailurl);
    log.Info("删除編号為" + picidarr + "的圖檔縮略圖");