提取HTML代码中文字的C#函数
/// <summary>
/// 去除html标记
/// </summary>
/// <param name="strhtml">包括html的源码 </param>
/// <returns>已经去除后的文字</returns>
public static string striphtml(string strhtml)
{
string [] aryreg ={
@"<script[^>]*?>.*?</script>",
@"<(\/\s*)?!?((\w+:)?\w+)(\w+(\s*=?\s*(([""'])(*)?>",
@"([\r\n])[\s]+",
@"&(quot|#34);",
@"&(amp|#38);",
@"&(lt|#60);",
@"&(gt|#62);",
@"&(nbsp|#160);",
@"&(iexcl|#161);",
@"&(cent|#162);",
@"&(pound|#163);",
@"&(copy|#169);",
@"(\d+);",
@"-->",
@"<!--.*\n"
};
string [] aryrep = {
"",
"",
"",
"\"",
"&",
"<",
">",
" ",
"\xa1",//chr(161),
"\xa2",//chr(162),
"\xa3",//chr(163),
"\xa9",//chr(169),
"",
"\r\n",
""
};
string newreg =aryreg[0];
string stroutput=strhtml;
for(int i = 0;i<aryreg.length;i++)
{
regex regex = new regex(aryreg[i],regexoptions.ignorecase );
stroutput = regex.replace(stroutput,aryrep[i]);
}
stroutput.replace("<","");
stroutput.replace(">","");
stroutput.replace("\r\n","");
return stroutput;
}
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