Regex.Matches和Regex.Replace的几个问题

[wmcode]

1.如何用正则将字符串中的"零一二三四五六七八九"分别替换成"0123456789"，如"五六一"替换成"561"

Regex.Replace("三二一", "([零一二三四五六七八九])", "([零一二三四五六七八九])".IndexOf("$1"), RegexOptions.IgnoreCase) //$1不能用在IndexOf中，郁闷

2.看下边的正则匹配：

MatchCollection matchs = Regex.Matches("五千二百一十一", "([零一二三四五六七八九])[十百千万亿]([零一二三四五六七八九])", RegexOptions.IgnoreCase);
foreach (Match match in matchs)
    MessageBox.Show(match.Value);

结果是：

五千二
一十一

我希望的结果是：

五千二
二百一
一十一

怎么修改代码？

[zx_lxq]

帮你顶 学习

[wmcode]

up

[HDNGO]

1.搞个Linq的解法~

public void Linq8() {
    int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };
    string[] strings = { "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine" };

    var textNums = 
        from n in numbers
        select strings[n];
    
    Console.WriteLine("Number strings:");
    foreach (var s in textNums) {
        Console.WriteLine(s);
    }           
}

[wmcode]

@HDNGO

谢了，我这还是vs2005，不能用Linq

[Learn-anything]

第一个问题：

private void button1_Click(object sender, RoutedEventArgs e)
        {
            string sInput, sRegex;

            sInput = "六五一";

            sRegex = "[零一二三四五六七八九]";

            Regex r = new Regex(sRegex);

            MatchEvaluator myEvaluator = new MatchEvaluator(ReplaceCC);

            sInput = r.Replace(sInput, myEvaluator);

            MessageBox.Show(sInput);

        }

        public string ReplaceCC(Match m)
        {
            string result = string.Empty;
            switch(m.Value)
            {
                case "零":
                    result ="0";
                    break;
                case "一":
                    result = "1";
                    break;
                case "二":
                    result = "2";
                    break;
                case "三":
                    result = "3";
                    break;
                case "四":
                    result = "4";
                    break;
                case "五":
                    result = "5";
                    break;
                case "六":
                    result = "6";
                    break;
                case "七":
                    result = "7";
                    break;
                case "八":
                    result = "8";
                    break;
                case "九":
                    result = "9";
                    break;
                default:
                    break;
            }
            
            return result;
        }

[starj1]

这种简单的东西就别用正则表达式了吧...

        private string ConvertToDigit(string ToConvert)
        {
            const string sBigNumeric = "零一二三四五六七八九";
            const string sSmallNumeric = "0123456789";
            for (Int32 I = 0; I < sBigNumeric.Length; I++)
                ToConvert = ToConvert.Replace(sBigNumeric[I], sSmallNumeric[I]);
            return ToConvert;
        }

[starj1]

对第二个问题,只能崇拜了.正则表达式有那么强大吗?

[-无-为-]

学习了...

[starj1]

字符串的的字符一旦被匹配，在后面就不在可用了。除非仅仅用于条件判断。