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查找的正正反面表达式: 4.55美元、 5.5美元、 45美元、 7.86美元
原标题:regular expression to find: 4.55$, 5$, $45, $7.86
  • 时间:2012-05-24 09:19:51
  •  标签:
  • c#
  • regex

罚款4.55美元,5美元,45美元,7.86美元

我使用了 但只找到 $45 , $7.86

问题回答

似乎效果不错:

@"((?<=$)d+(.d+)?)|(d+(.d+)?(?=$))"

代码示例:

string source = "4.55$, 5$, $45, $7.86";
string reg = @"((?<=$)d+(.d+)?)|(d+(.d+)?(?=$))";
MatchCollection collection = Regex.Matches(source, reg);
foreach (Match match in collection)
{
    Console.WriteLine(match.ToString());
}

这有点笨拙,但这里是另一种表达方式(加上一些解释性代码),可能对你们有用:

string strRegex = @"$(?<Amount>d[.0-9]*)|(?<Amount>d[.0-9]*)$";
Regex myRegex = new Regex(strRegex);
string strTargetString = @"4.55$, 5$, $45, $7.86 ";

foreach (Match myMatch in myRegex.Matches(strTargetString))
{
    if (myMatch.Success)
    {
        //Capture the amount
        var amount = myMatch.Groups["Amount"].Value;
    }
}

实际上,它所做的是界定在金额开始或结束时的交替匹配 $ 的方式。

我用"RegexHero 测试过这个。

我想用下一种表达方式 来表达Globey在弦里

string expression = @"($d(.d*)?|d(.d*)?$)";




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