c#的java.util.regex的等效项是什么?

I am converting Java code to C# and need to replace the use of Java's regex. A typical use is

我正在将Java代码转换为c#，需要替换使用Java的regex。一个典型的使用

import java.util.regex.Matcher;
import java.util.regex.Pattern;
//...

String myString = "B12";
Pattern pattern = Pattern.compile("[A-Za-z](\\d+)");
Matcher matcher = Pattern.matcher(myString);
String serial = (matcher.matches()) ? matcher.group(1) : null;

which should extract a capture group from a matched target string. I'd be grateful for simple examples.

从匹配的目标字符串中提取捕获组。我要感谢这些简单的例子。

EDIT: I have now added the C# equivalent of the code as an answer.

编辑:我现在已经添加了c#的代码作为一个答案。

EDIT: Here is a tutorial on the use of the actual expressions.

编辑:这里有一个关于实际表达式使用的教程。

EDIT: Here is a useful comparison of C# and Java (and Perl.)

编辑:这里有一个关于c#和Java(以及Perl)的有用的比较。

2 个解决方案

#1

System.Text.RegularExpressions.Regex class is the .NET Framework equivalent. The MSDN page I linked to contains a simple example.

包含。Regex类是。net框架等效的。我链接到的MSDN页面包含一个简单的示例。

#2

I created the C# equivalent of the Java code in the question as:

我创建了c#等价于问题中的Java代码:

string myString = "B12";
Regex rx = new Regex(@"[A-Za-z](\\d+)");
MatchCollection matches = rx.Matches(myString);
if (matches.Count > 0)
{
    Match match = matches[0]; // only one match in this case
    GroupCollection groupCollection = match.Groups;
    Console.WriteLine("serial " + groupCollection[1].ToString());
}

EDIT (See @Mehrdad's helpful comments)

编辑(参见@Mehrdad的有用评论)

The original code was:

原始代码是:

// ...

MatchCollection matches = rx.Matches(myString);
foreach (Match match in matches)
{
    GroupCollection groupCollection = match.Groups;
    Console.WriteLine("serial " + groupCollection[1].ToString());
}

#1