询问根据input name找到input value值的正则写法？

[jadesun]

public static string GetInputValueByName(string Code,string inputname)
{
    string name,value = "";
    string str = "";
    string code = @"<Form>
		   <input type='hidden' value='1' name='rs_permission'/>
                     <input type='hidden' value='12298802,12537683,12815699' name='apn'/>
		   <input type='text' value='abcdefg' name='d_name' > 
		   </Form>";

    Regex reg = new Regex(这里的正则怎么写？, RegexOptions.IgnoreCase);

    MatchCollection mc = reg.Matches(str);
    foreach (Match m in mc)
    {
	name = m.Groups["name"].ToString();
	value = m.Groups["value"].ToString();
	if (name.Equals(inputname))
	  str = value;
    }

    return str;
}

[jadesun]

顶上去

[LixingTie]

public string FindValueByName(string str, string inputname)
{
    string pattern = "(<input.*?name='(?<Name>[^']+?)'.*?value='(?<Value>[^']+?)'.*?>)|(<input.*?value='(?<Value>[^']+?)'.*?name='(?<Name>[^']+?)'.*?>)";
    Match match = Regex.Match(str, pattern);
    while (match.Success)
    {
        string name = match.Groups["Name"].ToString();
        string value = match.Groups["Value"].ToString();
        if (name == inputname)
            return value;
        match = match.NextMatch();
    }
    return string.Empty;
}

[LixingTie]

string pattern = "(<input.*?name='(?<Name>[^']+?)'.*?value='(?<Value>[^']+?)'.*?>)|(<input.*?value='(?<Value>[^']+?)'.*?name='(?<Name>[^']+?)'.*?>)";

[编程有钱人了]

你想要什么正则?

[-过客-]

如果规则就如你的例子，value和name的顺序是一定的，那就很简单了

string code = @"<Form>
           <input type='hidden' value='1' name='rs_permission'/>
         <input type='hidden' value='12298802,12537683,12815699' name='apn'/>
           <input type='text' value='abcdefg' name='d_name' > 
           </Form>";
Regex reg = new Regex(@"(?is)<input\b(?:(?!value=).)*value='(?<value>[^']*)'\s+name='(?<name>[^']*)'[^>]*>");
MatchCollection mc = reg.Matches(code);
foreach (Match m in mc)
{
    richTextBox2.Text += m.Groups["name"].Value + "\n";
    richTextBox2.Text += m.Groups["value"].Value + "\n";
}

如果情况考虑复杂点，value和name可能还有其它属性，value=和name=后可能接“'”，“"”或直接接属性值，那么

string code = @"<Form>
           <input type='hidden' value='1' name='rs_permission'/>
         <input type='hidden' value='12298802,12537683,12815699' name='apn'/>
           <input type='text' value='abcdefg' name='d_name' > 
           </Form>";
Regex reg = new Regex(@"(?is)<input\b(?:(?!value=).)*value=(['""]?)(?<value>(?:(?!\1).)*)(?:(?!name=).)*name=(['""]?)(?<name>(?:(?!\2).)*)[^>]*>");
MatchCollection mc = reg.Matches(code);
foreach (Match m in mc)
{
    richTextBox2.Text += m.Groups["name"].Value + "\n";
    richTextBox2.Text += m.Groups["value"].Value + "\n";
}

如果顺序不一定，那会麻烦些

string code = @"<Form>
           <input type='hidden' value='1' name='rs_permission'/>
         <input type='hidden' value='12298802,12537683,12815699' name='apn'/>
           <input type='text' value='abcdefg' name='d_name' > 
           </Form>";
Regex reg = new Regex(@"(?is)<input\b(?=(?:(?!value=|/?input).)*value=(['""]?)(?<value>(?:(?!\1).)*)\1)(?:(?!name=).)*name=(['""]?)(?<name>(?:(?!\2).)*)\2[^>]*>");
MatchCollection mc = reg.Matches(code);
foreach (Match m in mc)
{
    richTextBox2.Text += m.Groups["name"].Value + "\n";
    richTextBox2.Text += m.Groups["value"].Value + "\n";
}

[whowhen21]

楼上正解。。

****************************************************************
看帖一定要回的，分也一定要接的。^_^
****************************************************************

[jadesun]

<input type='hidden' value='1' name='rs_permission'/>

查找 name 和 value 的值的正则

[youdandan]

xue習

[jadesun]

感谢大家的回复，尤其感谢lxcnn的耐心解答。

[jadesun]

这样子就能变成一个很通用的取input的正则表达式了。