asp.net开发网站时指定或截取标题字数的方法和内容页多关键字切分的方法

public string ShortTitle(string str, int length)
    {
        if (str.Length > length)

            str = str.Substring(0, length);
        return str;
    }
    public void Binkeyname()
    {
      
        string[] sArray = HiddenField1.Value.ToString().Split('|');
        foreach (string i in sArray)
        {
            string word = "%" + i.Trim().ToString() + "%";
            Response.Write("<a href=Nsearch.aspx?type=3&word=" + word.ToString() + " rel=external>" + i.Trim().ToString() + "</a>  ");
       
        }
    }