数字转换为大写,人民币

public string CBMoney(string  num)
    {
        string zNum="",xNum="";
        int dPos=num.IndexOf(".");
        if (dPos>0)
        {
        zNum=num.Substring(0,dPos);
        xNum=num.Substring(dPos+1);
        }else
        zNum=num;
        string[] ArrMoney=new string[]{"零","壹","贰","叁","肆","伍","陆","柒","捌","玖","拾"};
        string[] ArrUnit=new string[]{"万","千","百","拾","元"};
        string[] ArrXUnit=new string[]{"角","分"};
        int lenZNum=zNum.Length;
        string[] nArrUnit=new string[lenZNum];
        int j=0;
        for(int i=ArrUnit.Length-lenZNum;i<ArrUnit.Length;i++)
        {
            nArrUnit[j]=ArrUnit[i];
            j++;
        }
        string strMoney="";
        for(int i=0;i<zNum.Length;i++)
        {
        //char[] arrChar=num.ToCharArray();
        string nChar=zNum.Substring(i,1);
        strMoney=strMoney+ArrMoney[Int32.Parse(nChar)]+"<b>"+nArrUnit[i]+"</b>";
        }
        if(dPos>0)
        {
        for(int i=0;i<xNum.Length;i++)
        {
            string nChar=xNum.Substring(i,1);
            strMoney=strMoney+ArrMoney[Int32.Parse(nChar)]+"<b>"+ArrXUnit[i]+"</b>";
        }
        }
        return strMoney;
        }