如果一张要显示的图片穿插着两个路径该怎么解决？

if (File.Exists(HttpContext.Current.Server.MapPath(stuModel.Head)) != false)

{

//DAL.FaceImg faceImgDal = new DAL.FaceImg();

//DownFile(headFirst + smodel.Head, smodel.Head, context);

////headFirst = "http://192.168.1.112:7101/";

lterImgHead.Text = string.Format("<img src=‘{0}‘ alt=‘‘ width=‘100‘ height=‘100‘ />", AdminPath + (stuModel.Head));

}

else

{

lterImgHead.Text = string.Format("<img src=‘{0}‘ alt=‘‘ width=‘100‘ height=‘100‘ />", AdminBasicPath + (stuModel.Head));

}