求C#正则获得指定标签的内容

HTML code

<li class="h4">x1x</li><li class="h4">x2x</li><li class="h4">xfx</li><li class="h4">xsx</li>

如上的html代码,具有多个标签,想获得每个]<li class="h4">想要获得内容</li>.
谢谢大家.对于正则是新人.请多帮忙.

[解决办法]

C# code

string htmlStr = @"<li class=""h4"">x1x</li><li class=""h4"">x2x</li><li class=""h4"">xfx</li><li class=""h4"">xsx</li>";Regex re = new Regex(@"(?<=<li\s*class=""h4"">)[^<]+(?=</li>)", RegexOptions.None);MatchCollection mc = re.Matches("text");foreach (Match ma in mc){  //ma.Value就是你要值}
[解决办法]
C# code
var reg = new Regex("<li[^>]*class=(['\"])h4\\1[^>]*>(?<content>.*?)</li>", RegexOptions.IgnoreCase);            const string str =                "<li class=\"h4\">x1x</li><li class=\"h4\">x2x</li><li class=\"h4\">xfx</li><li class=\"h4\">xsx</li>";            var ms = reg.Matches(str);            foreach (Match match in ms)            {                Console.WriteLine(match.Groups["content"].Value);            }