ArrayList al = new ArrayList();
        al.Add("AAA");
        al.Add("AAAA");
        al.Add("A");
        al.Add("AA");
        
        myComp comp = new myComp();
        al.Sort(comp);
        
        for (int i = 0; i < al.Count; i++)
        {
            Response.Write(al[i] + "<BR>");
        }




class myComp:IComparer
{
    #region IComparer 成员

    public int Compare(object x, object y)
    {
        return x.ToString().Length > y.ToString().Length ? 0 :1;
    }

    #endregion
}

------解决方案--------------------
8楼的高手已经给你实现了……


ArrayList.Sort  

IComparer 接口～

------解决方案--------------------
8楼的思想不错。顶下

------解决方案--------------------
ding 8