正则表达式的问题

本文介绍了正则表达式的问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

请帮助解决我的下列问题。

Hi, please, kindly help to solve my following problem.

string str = "\"phone-number\""; string str1 = "<div class=" + str + ">" + "(101) 1010-1234" + "</div>"; string str2 = "<div class=\"phone-number\"><\\(\\d{3}\\) \\d{3}\\-\\d{4}/div>"; Match _match = Regex.Match(str1, str2); string value = _match.Value; Console.WriteLine(value);

我没有得到任何价值。 拜托，如果我错了，请帮我纠正我的代码。 先谢谢。

I am not getting any value. please, help me to correct my code if i am wrong. Thanks in advance.

推荐答案

Ahem： Ahem: string str1 = "<div class=" + str + ">" + "(101) 1010-1234" + "</div>"; string str2 = "<div class=\"phone-number\"><\\(\\d{3}\\) \\d{3}\\-\\d{4}/div>";

仔细观察：

Look closely:

\\d{3}\\-\\d{4}

是三位数，后跟一个连字符，后跟四位数。

Is three digits, followed by a hyphen, followed by four digits.

1010-1234

四位数后跟一个连字符，后跟四位数。 获取 Expresso [ ^ ] - 它是免费的，它会检查并生成正则表达式。

Is four digits, followed by a hyphen, followed by four digits. Get a copy of Expresso [^] - it's free, and it examines and generates Regular expressions.