获取html字符，只显示文字信息代码,CSharp代码库,德仔网

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【CSharp】获取html字符，只显示文字信息
作者:Dezai.CN / 发布于2011/9/9/ 747
<div><span style="color: blue">public string </span>replaceHtmlCode(<span style="color: blue">string </span>Htmlstring)
 {
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"<br/>"</span>, <span style="color: #a31515">"\n"</span>);
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"<br/>"</span>, <span style="color: #a31515">"\r\n"</span>);
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"&lt;"</span>, <span style="color: #a31515">"<"</span>);
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"&gt;"</span>, <span style="color: #a31515">">"</span>);
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"&quot;"</span>, <span style="color: #a31515">"\""</span>);
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"nbsp;"</span>, <span style="color: #a31515">" "</span>);
 Htmlstring = Htmlstring.Replace(<span style="color: #a31515">"&amp;"</span>, <span style="color: #a31515">""</span>);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"<script[^>]*?>.*?</script>"</span>, <span style="color: #a31515">""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 <span style="color: green">//删除HTML 
 </span>Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"<(.[^>]*)>"</span>, <span style="color: #a31515">""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"([\r\n])[\s]+"</span>, <span style="color: #a31515">""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"-->"</span>, <span style="color: #a31515">""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"<!--.*"</span>, <span style="color: #a31515">""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(quot|#34);"</span>, <span style="color: #a31515">"\""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(amp|#38);"</span>, <span style="color: #a31515">"&"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(lt|#60);"</span>, <span style="color: #a31515">"<"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(gt|#62);"</span>, <span style="color: #a31515">">"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(nbsp|#160);"</span>, <span style="color: #a31515">" "</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(iexcl|#161);"</span>, <span style="color: #a31515">"\xa1"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(cent|#162);"</span>, <span style="color: #a31515">"\xa2"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(pound|#163);"</span>, <span style="color: #a31515">"\xa3"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&(copy|#169);"</span>, <span style="color: #a31515">"\xa9"</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);
 Htmlstring = <span style="color: #2b91af">Regex</span>.Replace(Htmlstring, <span style="color: #a31515">@"&#(\d+);"</span>, <span style="color: #a31515">""</span>, <span style="color: #2b91af">RegexOptions</span>.IgnoreCase);

 Htmlstring.Replace(<span style="color: #a31515">"<"</span>, <span style="color: #a31515">""</span>);
 Htmlstring.Replace(<span style="color: #a31515">">"</span>, <span style="color: #a31515">""</span>);
 Htmlstring.Replace(<span style="color: #a31515">"\r\n"</span>, <span style="color: #a31515">""</span>);

 <span style="color: green">//对字符串长度进行判断。然后依据长短进行截取 
 </span><span style="color: blue">if </span>(Htmlstring.Length < 100)
 {<span style="color: green">//如果长度小于40个汉字 
 </span><span style="color: blue">return </span>Htmlstring;
 }
 <span style="color: blue">else
 </span>{
 Htmlstring = Htmlstring.Substring(0, 100) + <span style="color: #a31515">"..."</span>;
 <span style="color: blue">return </span>Htmlstring;
 }
 }
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