.NET 正则表达式类型 Match Group Capture

这几个概念比较细致，见如下程序演示。

 1 using System;
 2  using System.Collections.Generic;
 3  using System.Linq;
 4  using System.Text;
 5  using System.Text.RegularExpressions;
 6 
 7  namespace RegExFindArgs
 8 {
 9     class Program
10     {
11         static void Main(string[] args)
12         {
13             Experiment();
14         }
15 
16         public static void Experiment()
17         {
18             Regex regex = new Regex(@"(([A-Z])+(\d)+)", RegexOptions.Multiline | RegexOptions.Singleline | RegexOptions.CultureInvariant | RegexOptions.Compiled);
19             String test = "ABC12345";
20             MatchCollection mc = regex.Matches(test);
21             Console.WriteLine("MatchCollection count:{0}", mc.Count);
22             Console.WriteLine("----------------");
23 
24             for (Int32 mc_i = 0; mc_i < mc.Count; mc_i++)
25             {
26                 Console.WriteLine("Match[{0}].Value:[{1}]", mc_i, mc[mc_i].Value);
27                 GroupCollection gc = mc[mc_i].Groups;
28                 Console.WriteLine("  There're {0} groups in this match", gc.Count);
29                 
30                 for (Int32 gc_i = 0; gc_i < gc.Count; gc_i++)
31                 {
32                     Console.WriteLine("  Group[{0}].Value:[{1}]", gc_i, gc[gc_i].Value);
33 
34                     CaptureCollection cc = gc[gc_i].Captures;
35                     Console.WriteLine("    There're {0} captures in this group", cc.Count);
36                     for (Int32 cc_i = 0; cc_i < cc.Count; cc_i++)
37                     {
38                         Console.WriteLine("    Capture[{0}].Value:[{1}]", cc_i, cc[cc_i].Value);
39                     }
40                 }
41             }            
42         }
43     }
44 }
45

输出：

 1 MatchCollection count:1
 2 ----------------
 3 Match[0].Value:[ABC12345]
 4   There're 4 groups in this match
 5   Group[0].Value:[ABC12345]
 6     There're 1 captures in this group
 7     Capture[0].Value:[ABC12345]
 8   Group[1].Value:[ABC12345]
 9     There're 1 captures in this group
10     Capture[0].Value:[ABC12345]
11   Group[2].Value:[C]
12     There're 3 captures in this group
13     Capture[0].Value:[A]
14     Capture[1].Value:[B]
15     Capture[2].Value:[C]
16   Group[3].Value:[5]
17     There're 5 captures in this group
18     Capture[0].Value:[1]
19     Capture[1].Value:[2]
20     Capture[2].Value:[3]
21     Capture[3].Value:[4]
22     Capture[4].Value:[5]

.NET 正则表达式 类型 Match Group Capture

.NET 正则表达式类型 Match Group Capture