Question

c# 从正则表达式获取值

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baidu.+?wd=|baidu.+?word
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以上是百度搜索的URL
正则表达式如上，如果符合上面的正则表达式，那么如何获取 wd 或者word

关键字的值呢？

Answer 1

string oldstr = "baidu.+?wd=|baidu.+?word";
Regex rgx = new Regex(@".*?\?(?<temp1>\w+)\=.*?\?(?<temp2>\w+)", RegexOptions.Compiled);
string getstr1 = rgx.Match(oldstr).Result("${temp1}").ToString();
string getstr2 = rgx.Match(oldstr).Result("${temp2}").ToString();
TextBox2.Text = getstr1 + "\n" + getstr2;

Answer 2

string oldstr = "baidu.+?wd=|baidu.+?word";
Regex rgx = new Regex(@".*?\?(?<temp1>\w+)\=.*?\?(?<temp2>\w+)", RegexOptions.Compiled);
string getstr1 = rgx.Match(oldstr).Result("${temp1}").ToString();
string getstr2 = rgx.Match(oldstr).Result("${temp2}").ToString();
TextBox2.Text = getstr1 + "\n" + getstr2;
希望对您有点帮助.

Answer 3

http://www.baidu.com/s?wd=a

http://www.baidu.com/s?wd=(.+)
Match.Group[1].Value;