求正则表达式：见内容

[babyzhou]

要求：
在html中查找符合以下规则的字符串
除了<Table
<tr
<td
以外的其它标签头
如<div
<li
<font
....................................

[rcom10002]

try {
Regex regexObj = new Regex("<(?!table|tr|td)\\S+",
RegexOptions.IgnoreCase);
Match matchResults = regexObj.Match(subjectString);
while (matchResults.Success) {

matchResults = matchResults.NextMatch();
}
} catch (ArgumentException ex) {
// Syntax error in the regular expression
}


Try
Dim RegexObj As New Regex("<(?!table|tr|td)\S+", RegexOptions.IgnoreCase)
Dim MatchResults As Match = RegexObj.Match(SubjectString)
While MatchResults.Success

MatchResults = MatchResults.NextMatch()
End While
Catch ex As ArgumentException
'Syntax error in the regular expression
End Try

[saucer]

use Zero-width negative lookahead,

http://msdn.microsoft.com/library/default.asp?url=/library/chs/cpgenref/html/cpconGroupingConstructs.asp


string html = "...................";

Regex re = new Regex(@"<(?!table|tr|td)\S+", RegexOptions.Singleline|RegexOptions.IgnoreCase);
foreach(Match m in re.Matches(html))
Console.WriteLine(m.Value);

[Dennis_maomao]

顶