用VS新建WinForm程序，窗体上是三个文本框和一个按钮。
可以自己构造正则表达式，自己修改匹配内容
正则表达是要提取的部分为hewenqitext
代码如下：
1 using System;
2 using System.Text.RegularExpressions;
3 using System.Windows.Forms;
4
5 namespace HoverTreeBatch.HoverTree
6 {
7 public partial class RegexForm : Form
8 {
9 public RegexForm()
10 {
11 InitializeComponent();
12 textBox_regex.Text = @"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""‘]?[\s\t\r\n]*(?<hewenqitext>[^\s\t\r\n""‘<>]*)[^<>]*?/?[\s\t\r\n]*>";
13 textBox_content.Text = @"<div class=""dengxaing-hovertree-com""><a title=""何问起批量2"" href=""http://hovertree.com/hvtimg/201601/p3t2ldyr.png""><img src=""http://hovertree.com/hvtimg/201601/p3t2ldyr_l.png"" style=""width:180px;height:140px;"" /></a><a title=""VS2015开发人员命令提示查看PublicKeyToken(公钥标记)"" href=""http://hovertree.com/hvtimg/201601/wn0bamxp.png""><img src=""http://hovertree.com/hvtimg/201601/wn0bamxp_l.png"" style=""width:180px;height:140px;"" /></a><a title=""消灭僵尸游戏"" href=""http://hovertree.com/hvtimg/201601/q47add2k.jpg""><img src=""http://hovertree.com/hvtimg/201601/q47add2k_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""纯CSS3漂亮的房子不错的天气"" href=""http://hovertree.com/hvtimg/201601/lbau8hqb.png""><img src=""http://hovertree.com/hvtimg/201601/lbau8hqb_l.png"" style=""width:180px;height:140px;"" /></a><a title=""HoverClock"" href=""http://hovertree.com/hvtimg/201601/thbniyjx.png""><img src=""http://hovertree.com/hvtimg/201601/thbniyjx_l.png"" style=""width:180px;height:140px;"" /></a><a title=""javascript元旦倒计时特效"" href=""http://hovertree.com/hvtimg/201512/o9qashmi.gif""><img src=""http://hovertree.com/hvtimg/201512/o9qashmi_l.gif"" style=""width:180px;height:140px;"" /></a><a title=""下雨"" href=""http://hovertree.com/hvtimg/201512/f748s0ko.jpg""><img src=""http://hovertree.com/hvtimg/201512/f748s0ko_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""何问起直接说喜欢你！"" href=""http://hovertree.com/hvtimg/201512/vt1tf0xl.jpg""><img src=""http://hovertree.com/hvtimg/201512/vt1tf0xl_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""IIS7，IIS7.5 URL重写模块工具"" href=""http://hovertree.com/hvtimg/201512/ew4yb78b.png""><img src=""http://hovertree.com/hvtimg/201512/ew4yb78b_l.png"" style=""width:180px;height:140px;"" /></a><a title=""山水画"" href=""http://hovertree.com/hvtimg/201512/agagq0or.jpg""><img src=""http://hovertree.com/hvtimg/201512/agagq0or_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""刘德华"" href=""http://hovertree.com/hvtimg/201512/r51a22uy.gif""><img src=""http://hovertree.com/hvtimg/201512/r51a22uy_l.gif"" style=""width:180px;height:140px;"" /></a><a title=""IIS为网站设置域名"" href=""http://hovertree.com/hvtimg/201512/69yoeuhf.jpg""><img src=""http://hovertree.com/hvtimg/201512/69yoeuhf_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""HoverTreeCMS分成"" href=""http://hovertree.com/hvtimg/201512/jgi94fdf.png""><img src=""http://hovertree.com/hvtimg/201512/jgi94fdf_l.png"" style=""width:180px;height:140px;"" /></a><a title=""范冰冰"" href=""http://hovertree.com/hvtimg/201511/6j9j6tk5.png""><img src=""http://hovertree.com/hvtimg/201511/6j9j6tk5_l.png"" style=""width:180px;height:140px;"" /></a><a title=""周末愉快"" href=""http://hovertree.com/hvtimg/201511/60mj4wsb.gif""><img src=""http://hovertree.com/hvtimg/201511/60mj4wsb_l.gif"" style=""width:180px;height:140px;"" /></a><a title=""谢霆锋手机背景图"" href=""http://hovertree.com/hvtimg/201508/cnvkv745.jpg""><img src=""http://hovertree.com/hvtimg/201508/cnvkv745_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""现代舞舞蹈家玛莎·葛兰姆动画Logo"" href=""http://hovertree.com/hvtimg/201506/ufigfjvn.jpg""><img src=""http://hovertree.com/hvtimg/201506/ufigfjvn_l.jpg"" style=""width:180px;height:140px;"" /></a><a title=""每次吵架，都希望男票这样解决战斗。。。"" href=""http://hovertree.com/hvtimg/201506/iqoqrhfn.gif""><img src=""http://hovertree.com/hvtimg/201506/iqoqrhfn_l.gif"" style=""width:180px;height:140px;"" /></a><a title=""现代舞舞蹈家玛莎·葛兰姆动画Logo"" href=""http://hovertree.com/hvtimg/201506/xlyxp4wg.png""><img src=""http://hovertree.com/hvtimg/201506/xlyxp4wg_l.png"" style=""width:180px;height:140px;"" /></a><a title=""美女"" href=""http://hovertree.com/hvtimg/201506/m921jw4n.jpg""><img src=""http://hovertree.com/hvtimg/201506/m921jw4n_l.jpg"" style=""width:180px;height:140px;"" /></a></div>";
14 }
15
16 private void button_ok_Click(object sender, EventArgs e)
17 {
18 Regex m_hvtRegImg = new Regex(textBox_regex.Text, RegexOptions.IgnoreCase);
19
20
21 //搜索匹配的字符串
22 MatchCollection hewenqi_matches;
23 try
24 {
25 hewenqi_matches = m_hvtRegImg.Matches(textBox_content.Text);
26
27 // 取得匹配项列表
28 foreach (Match match in hewenqi_matches)
29 {
30 textBox_result.Text = textBox_result.Text + match.Groups["hewenqitext"].Value + "\r\n";
31 }
32 }
33 catch (Exception ex)
34 {
35 textBox_result.Text = ex.ToString();
36 }
37
38 }
39 }
40 }
41
42 /*
43 <div class="dengxaing-hovertree-com">
44
45 <a title="何问起批量2" href=""http://hovertree.com/hvtimg/201601/p3t2ldyr.png"">
46 <img src=""http://hovertree.com/hvtimg/201601/p3t2ldyr_l.png"" style="width:180px;height:140px;" /></a>
47
48 <a title="VS2015开发人员命令提示查看PublicKeyToken(公钥标记)" href=""http://hovertree.com/hvtimg/201601/wn0bamxp.png"">
49 <img src=""http://hovertree.com/hvtimg/201601/wn0bamxp_l.png"" style="width:180px;height:140px;" /></a>
50
51 <a title="消灭僵尸游戏" href=""http://hovertree.com/hvtimg/201601/q47add2k.jpg"">
52 <img src=""http://hovertree.com/hvtimg/201601/q47add2k_l.jpg"" style="width:180px;height:140px;" /></a>
53
54 <a title="纯CSS3漂亮的房子不错的天气" href=""http://hovertree.com/hvtimg/201601/lbau8hqb.png"">
55 <img src=""http://hovertree.com/hvtimg/201601/lbau8hqb_l.png"" style="width:180px;height:140px;" /></a>
56
57 <a title="HoverClock" href=""http://hovertree.com/hvtimg/201601/thbniyjx.png"">
58 <img src=""http://hovertree.com/hvtimg/201601/thbniyjx_l.png"" style="width:180px;height:140px;" /></a>
59
60 <a title="javascript元旦倒计时特效" href=""http://hovertree.com/hvtimg/201512/o9qashmi.gif">
61 <img src=""http://hovertree.com/hvtimg/201512/o9qashmi_l.gif" style="width:180px;height:140px;" /></a>
62
63 <a title="下雨" href=""http://hovertree.com/hvtimg/201512/f748s0ko.jpg"">
64 <img src=""http://hovertree.com/hvtimg/201512/f748s0ko_l.jpg"" style="width:180px;height:140px;" /></a>
65
66 <a title="何问起直接说喜欢你！" href=""http://hovertree.com/hvtimg/201512/vt1tf0xl.jpg"">
67 <img src=""http://hovertree.com/hvtimg/201512/vt1tf0xl_l.jpg"" style="width:180px;height:140px;" /></a>
68
69 <a title="IIS7，IIS7.5 URL重写模块工具" href=""http://hovertree.com/hvtimg/201512/ew4yb78b.png"">
70 <img src=""http://hovertree.com/hvtimg/201512/ew4yb78b_l.png"" style="width:180px;height:140px;" /></a>
71
72 <a title="山水画" href=""http://hovertree.com/hvtimg/201512/agagq0or.jpg"">
73 <img src=""http://hovertree.com/hvtimg/201512/agagq0or_l.jpg"" style="width:180px;height:140px;" /></a>
74
75 <a title="刘德华" href=""http://hovertree.com/hvtimg/201512/r51a22uy.gif">
76 <img src=""http://hovertree.com/hvtimg/201512/r51a22uy_l.gif" style="width:180px;height:140px;" /></a>
77
78 <a title="IIS为网站设置域名" href=""http://hovertree.com/hvtimg/201512/69yoeuhf.jpg"">
79 <img src=""http://hovertree.com/hvtimg/201512/69yoeuhf_l.jpg"" style="width:180px;height:140px;" /></a>
80
81 <a title="HoverTreeCMS分成" href=""http://hovertree.com/hvtimg/201512/jgi94fdf.png"">
82 <img src=""http://hovertree.com/hvtimg/201512/jgi94fdf_l.png"" style="width:180px;height:140px;" /></a>
83
84 <a title="范冰冰" href=""http://hovertree.com/hvtimg/201511/6j9j6tk5.png"">
85 <img src=""http://hovertree.com/hvtimg/201511/6j9j6tk5_l.png"" style="width:180px;height:140px;" /></a>
86
87 <a title="周末愉快" href=""http://hovertree.com/hvtimg/201511/60mj4wsb.gif">
88 <img src=""http://hovertree.com/hvtimg/201511/60mj4wsb_l.gif" style="width:180px;height:140px;" /></a>
89
90 <a title="谢霆锋手机背景图" href=""http://hovertree.com/hvtimg/201508/cnvkv745.jpg"">
91 <img src=""http://hovertree.com/hvtimg/201508/cnvkv745_l.jpg"" style="width:180px;height:140px;" /></a>
92
93 <a title="现代舞舞蹈家玛莎·葛兰姆动画Logo" href=""http://hovertree.com/hvtimg/201506/ufigfjvn.jpg"">
94 <img src=""http://hovertree.com/hvtimg/201506/ufigfjvn_l.jpg"" style="width:180px;height:140px;" /></a>
95
96 <a title="每次吵架，都希望男票这样解决战斗。。。" href=""http://hovertree.com/hvtimg/201506/iqoqrhfn.gif">
97 <img src=""http://hovertree.com/hvtimg/201506/iqoqrhfn_l.gif" style="width:180px;height:140px;" /></a>
98
99 <a title="现代舞舞蹈家玛莎·葛兰姆动画Logo" href=""http://hovertree.com/hvtimg/201506/xlyxp4wg.png"">
100 <img src=""http://hovertree.com/hvtimg/201506/xlyxp4wg_l.png"" style="width:180px;height:140px;" /></a>
101
102 <a title="美女" href=""http://hovertree.com/hvtimg/201506/m921jw4n.jpg"">
103 <img src=""http://hovertree.com/hvtimg/201506/m921jw4n_l.jpg"" style="width:180px;height:140px;" /></a>
104 </div>
105 */
转载自：http://hovertree.com/h/bjaf/nxoqir0b.htm
http://www.cnblogs.com/sosoft/p/kaifajishu.html
时间： 2024-10-10 14:25:11