钱币数字转换为中文

public string NumToChs(decimal a_money)
        ...{
            try
            ...{
                string ls_money,ls_chinese="",ls_ZF = "+";
                int l_len,l_last,l_bit,l_bit_prior=0,l_location = 0;
                if(a_money < 0)
                ...{
                    ls_ZF = "-";
                    a_money = 0.0M - a_money;
                }
                ls_money = a_money.ToString("0.00");
                l_len    = ls_money.Length;
                l_last   = l_len -1;
                ls_money = ls_money.Substring(0,l_len-3)+ls_money.Substring(l_last-1,2);
                l_last  -= 1;
                for(int i=l_last;i>=0;i--)
                ...{
                    l_location ++;
                    l_bit = int.Parse(ls_money.Substring(i,1));
                    if(l_bit==0&l_bit_prior!=0) ls_chinese = "零"+ls_chinese;
                    if(l_location==1&l_bit!=0) ls_chinese = "分"+ls_chinese;
                    if(l_location==2&l_bit!=0) ls_chinese = "角"+ls_chinese;
                    if(l_location==3) ls_chinese = "圆"+ls_chinese;
                    if(l_location>=4&(int)SqlInt32.Mod(l_location,4)==0&l_bit!=0) ls_chinese = "拾"+ls_chinese;
                    if(l_location>=4&(int)SqlInt32.Mod(l_location,4)==1&l_bit!=0) ls_chinese = "佰"+ls_chinese;
                    if(l_location>=4&(int)SqlInt32.Mod(l_location,4)==2&l_bit!=0) ls_chinese = "仟"+ls_chinese;
                    if(l_location==7|l_location==15) ls_chinese = "万"+ls_chinese;
                    if(l_location==11) ls_chinese = "亿"+ls_chinese;

                    if(l_bit==1)  ls_chinese = "壹"+ls_chinese;
                    if(l_bit==2)  ls_chinese = "贰"+ls_chinese;
                    if(l_bit==3)  ls_chinese = "叁"+ls_chinese;
                    if(l_bit==4)  ls_chinese = "肆"+ls_chinese;
                    if(l_bit==5)  ls_chinese = "伍"+ls_chinese;
                    if(l_bit==6)  ls_chinese = "陆"+ls_chinese;
                    if(l_bit==7)  ls_chinese = "柒"+ls_chinese;
                    if(l_bit==8)  ls_chinese = "捌"+ls_chinese;
                    if(l_bit==9)  ls_chinese = "玖"+ls_chinese;

                    l_bit_prior = l_bit;
                }
                if(ls_ZF=="-") ls_chinese = "退回 "+ls_chinese;
                return ls_chinese;
            }
            catch(Exception ex)
            ...{
                throw new Exception(ex.Message.ToString());
            }
        }