上传头像代码

     

        string str=FileUpload1.PostedFile.FileName;
        int i = str.LastIndexOf(".");
        string newext = str.Substring(i);
        DateTime dt = DateTime.Now;
        string newname = dt.Year.ToString() + dt.Month.ToString() + dt.Day.ToString() + dt.Hour.ToString() + dt.Minute.ToString() + dt.Second.ToString();
        Random rn = new Random();
        newname = newname + rn.Next(11, 99).ToString();
        str = "uploadfiles\\" + newname + newext;
        FileUpload1.PostedFile.SaveAs(Server.MapPath(str));