Question

用C#用正则如何提取出标签a中的内容

如提取
<td class="browseEntryData">
<a name='anchor_3'></a> <a href="/search~S0*chx?/twavelet/twavelet/1%2C61%2C64%2CB/frameset&FF=twavelet+analysis+and+its+applications&1%2C1%2C">Wavelet analysis and its applications</a>

</td>
中href的内容/search~S0*chx?/twavelet/twavelet/1%2C61%2C64%2CB/frameset&FF=twavelet+analysis+and+its+applications&1%2C1%2C
和Wavelet analysis and its applications
谢谢了！
急用

Answer 1

Chapter XIII control the destiny of life and death (two) text / water beauty

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Answer 2

Match mc=Regex.Match(您的数据,@"<a href=""([^>]+?)"">([^<]+?)</a>",RegexOptions.Multiline);
string href=mc.Group[1].Value;
string data=mc.Group[2].Value;

追问

根据您的意思 ]+?)"">([^是与我想要内容的匹配表达式？
那么 Regex s = new Regex("]+?)"">([^");
if (s.IsMatch(tempstr))
{
foreach (Match item in s.Matches(tempstr))
{
tempstr = item.Groups[1].Value;
}
}
其中tempstr是我的数据
这个对吗

追答

不对。
("]+?)"">([^"这里错
foreach (Match item in s.Matches(tempstr))这里错，
直接用我上面的吧。

追问

恩 我用了 提取出来了 谢谢你
不过还有一个问题 我上面的这个文本只是html的一部分 我想把文件里的这些链接和书名都提取出来 怎么办呢 是不是加个循环 但是我不知道怎么写

追答

var matches=REgex.Matches(您的数据,@"]+?)"">([^",RegexOptions.Multiline);
foreach(Match mc in matches)
{
string href=mc.Group[1].Value;
string data=mc.Group[2].Value;
}

追问

这个程序输入之后显示这样的错误了
E:\yingyongchengxu\WindowsApplication10\WindowsApplication10\Form1.cs(89,13): 错误 CS0246: 找不到类型或命名空间名称“var”(是否缺少 using 指令或程序集引用?)

追答

MatchCollection代替