去除字符串中的HTML标签

 public static string Html2Text(string htmlStr)
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3 {
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5     if (String.IsNullOrEmpty(htmlStr))
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7     {
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9         return "";
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11     }
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13     string regEx_style = "<style[^>]*?>[\s\S]*?<\/style>"; //定义style的正则表达式
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15     string regEx_script = "<script[^>]*?>[\s\S]*?<\/script>"; //定义script的正则表达式  
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17     string regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式  
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19     htmlStr = Regex.Replace(htmlStr, regEx_style, "");//删除css
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21 htmlStr = Regex.Replace(htmlStr, regEx_script, "");//删除js
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23     htmlStr = Regex.Replace(htmlStr, regEx_html, "");//删除html标记
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25     htmlStr = Regex.Replace(htmlStr, "\s*| | | ", "");//去除tab、空格、空行
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27     htmlStr = htmlStr.Replace(" ", "");
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29     htmlStr = htmlStr.Replace(""", "");//去除异常的引号" " "
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31     htmlStr = htmlStr.Replace(""", "");
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33     return htmlStr.Trim();
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35 }