正则表达式筛选数据（C#)

I永超 2013-07-19 02:29:05

大家看一下我这段HTML源码，我要从中筛选出：杜汶澤还有https://www.facebook.com/karma.dawa.7?fref=st，等这一模块所有值还包括：肖丽和https://www.facebook.com/li.sally.96?fref=st等，请问正则表达式怎么写呀？？？

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I永超 2013-07-19

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我还要筛选到：杜汶澤这个模块所对应的ID值如： 100003717698520 求正则表达式呀？？？

I永超 2013-07-19

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为什么筛选不到Jackie Fung呢其它的都筛选到了？？？

I永超 2013-07-19

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private void btn_get_Click(object sender, EventArgs e) { Regex threg = new Regex(@"(?i)<a\s*href=""(?<url>[^""]*)""\s*data-hovercard=""\/ajax\/hovercard\/user\.php\?id=\d+"">(?<name>[^<]*)<", RegexOptions.ExplicitCapture); MatchCollection theMatches = threg.Matches(textBox1.Text); string result = ""; foreach (Match thematch in theMatches) { if (thematch.Length!=0) { result += thematch.Groups["url"].Value; result += thematch.Groups["name"].Value; } } textBox2.Text = result; }

shawn_yang 2013-07-19

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 private void btn_get_Click(object sender, EventArgs e)
        {
            Regex threg = new Regex(@"(?i)<a\s*href=""(?<url>[^""]*)""\s*data-hovercard=""\/ajax\/hovercard\/user\.php\?id=\d+"">(?<name>[^<]*)<", RegexOptions.ExplicitCapture);
            MatchCollection theMatches = threg.Matches(textBox1.Text);
            string result = "";
            foreach (Match thematch in theMatches)
            {
                if (thematch.Length!=0)
                {
                    
                    result += thematch.Groups["url"].Value;
                    result += thematch.Groups["name"].Value;
                   
                }

            }
            textBox2.Text = result;

        }

shawn_yang 2013-07-19

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 private void btn_get_Click(object sender, EventArgs e)

        {

            Regex threg = new Regex(@"(?i)<a\s*href=""([^""]*)""\s*data-hovercard=""\/ajax\/hovercard\/user\.php\?id=\d+"">([^<]*)<", RegexOptions.ExplicitCapture);

            MatchCollection theMatches = threg.Matches(textBox1.Text);

            string result = "";

            foreach (Match thematch in theMatches)

            {

                if (thematch.Length!=0)

                {

                    result += thematch.Value.ToString();

                    //.Groups["title"].ToString();

                }



            }

            textBox2.Text = result;



        }

I永超 2013-07-19

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用这个怎么筛选不到呢？？？

I永超 2013-07-19

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不用也不对呀

shawn_yang 2013-07-19

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试试这个 new Regex(@"(?i)<a\s*href=""([^""]*)""\s*data-hovercard=""\/ajax\/hovercard\/user\.php\?id=\d+"">([^<]*)<", RegexOptions.ExplicitCapture)

shawn_yang 2013-07-19

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因为你用了@,就不需要转义符

I永超 2013-07-19

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这个正则怎么有错误呀？？？

I永超 2013-07-19

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string tempStr =File.ReadAllText(@"C:\Users\myx\Desktop\Test.txt", Encoding.GetEncoding("GB2312"));//读取txt string patterns = @"<span[^>]*?class=(['""]?)fsl fwb fcb\1[^>]*?>\s*?<a[^>]*?href=(['""]?)([^'""]*?)\2[^>]*?>([^<>]*?)(?=<)"; var list = Regex.Matches(tempStr, patterns).OfType<Match>().Select(a => new { href = a.Groups[3].Value, text = a.Groups[4].Value, }); 这个方法是怎么输出结果呀？？？我要看到筛选到的结果

shawn_yang 2013-07-19

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(?i)<a\s*href="([^"]*)"\s*data-hovercard="\/ajax\/hovercard\/user\.php\?id=\d+">([^<]*)<

I永超 2013-07-19

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这是什么原因呀？？？

为什么我用这种也筛选不到呢？

人生难得一只鸡 2013-07-19

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可能你的.netFrame版本太低了吧

string tempStr = File.ReadAllText(@"C:\Users\myx\Desktop\Test.txt", Encoding.GetEncoding("GB2312"));//读取txt
            string pattern = @"<span[^>]*?class=(['""]?)fsl fwb fcb\1[^>]*?>\s*?<a[^>]*?href=(['""]?)([^'""]*?)\2[^>]*?>([^<>]*?)(?=<)";
            foreach (Match m in Regex.Matches(tempStr, pattern))
            {
                string href = m.Groups[3].Value;
                string text = m.Groups[4].Value;
            }

I永超 2013-07-19

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怎么有错呀？？？

人生难得一只鸡 2013-07-19

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string tempStr = File.ReadAllText(@"C:\Users\myx\Desktop\Test.txt", Encoding.GetEncoding("GB2312"));//读取txt
            string pattern = @"<span[^>]*?class=(['""]?)fsl fwb fcb\1[^>]*?>\s*?<a[^>]*?href=(['""]?)([^'""]*?)\2[^>]*?>([^<>]*?)(?=<)";

            var list = Regex.Matches(tempStr, pattern).OfType<Match>().Select(a => new 
            { 
                href=a.Groups[3].Value,
                text=a.Groups[4].Value
            });
            /*
             * +		[0]	{ href = "https://www.facebook.com/karma.dawa.7?fref=st", text = "杜汶澤 " }	<Anonymous Type>
                +		[1]	{ href = "https://www.facebook.com/holaam?fref=st", text = "Jackie Fung" }	<Anonymous Type>
                +		[2]	{ href = "https://www.facebook.com/li.sally.96?fref=st", text = "肖丽" }	<Anonymous Type>

             */