Question

我想通过正则表达式执行此操作：样品：父亲今天去拜访他的祖父和他的父亲。

如何通过正则表达式选择粗体两个父亲？非常感谢。

Answer 1

我不确定为什么你需要正则表达式，因为你可以通过这样做“选择”你想要的字符串：

String myStr = "father";

或者，如果您需要替换字符串中的子字符串，则可以执行以下操作：

String myStr = "father goes visit his grandfather and and his father today."
myStr = myStr.Replace(" father ", " someOtherString ");

但是，如果确实想要使用RegEx，您可以通过以下方式获得MatchCollection：

String myStr = "father goes visit his grandfather and and his father today."
Regex.Mathces(myStr, "\bfather\b");

这不是一个非常有趣的正则表达式，因为它只是一个明确的字符串文字。

Answer 2

试试这个

var matchs=Regex.matches("father goes visit his grandfather and and his father today.",@"\bfather\b");

Answer 3

var matchCollection = Regex.Matches("father goes visit his grandfather and and his father today.", "\bfather\b");

foreach (Match m in matchCollection)
{
     // Process your code for each match
}

我怎样才能创建关于这种情况的正则表达式

3 个答案: