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正则表达式用于货币和金额C#

[英]Regex for currency and amount C#

我正在尝试为以下输出创建一个正则表达式:

Text         -                  Output Expected

$200                     currency sign = "$" and amount = 200
€ 20.34                  currency sign = "€" and amount = 20.34
£ 190,234                currency sign = "£" and amount = 190234
$  20.34                 currency sign = "$" and amount = 20.34

我对正则表达式不好,但我仍然想对正则表达式执行此操作。 有人可以帮助我实现这一目标吗?

您可以使用此正则表达式捕获符号和amout:

/(?<SYMBOL>[$€£]){1}\s*(?<AMOUNT>[\d.,]+)/g

演示 (查看右侧面板上的比赛信息)

希望能帮助到你。

您可以使用正则表达式:

(\D)\s*([.\d,]+)

caputre组1将包含货币符号和组2 contians值

参见演示http://regex101.com/r/eV2uZ7/1

EXPLANTION

(\\D)除数字以外的其他任何内容

\\s*匹配任意数量的空格。

[.\\d,]+匹配数字,逗号和点。

更具体地说,您还可以指定\\d[.\\d,]* ,以确保值部分始终以数字开头

([$€£]) *([0-9.,]*)

捕获组1将是货币符号,捕获组2将是金额,您还需要用Replace(',','')删除“,”

    string str = string.Empty , outPut = string.Empty;
        Regex paternWithDot = new Regex(@"\d+(\.\d+)+");
        Regex paternWithComa = new Regex(@"\d+(\,\d+)+");
        Match match = null;


        str = "& 34.34";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format( @" currency sign = ""{0}"" and amount = {1}" , str.Replace(match.Value, string.Empty),  match.Value) + Environment.NewLine;


        str = "€ 20.34 ";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format(@" currency sign = ""{0}"" and amount = {1}", str.Replace(match.Value, string.Empty), match.Value) + Environment.NewLine;

        str = "£ 190,234";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format(@" currency sign = ""{0}"" and amount = {1}", str.Replace(match.Value, string.Empty), match.Value) + Environment.NewLine;

        str = "$  20.34 ";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format(@" currency sign = ""{0}"" and amount = {1}", str.Replace(match.Value, string.Empty), match.Value) + Environment.NewLine;

        MessageBox.Show(outPut);

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