用regEx匹配替换字符串 [英] Replace string, with regEx match

问题描述

我希望使用RegEx进行捕获

以下模式：

i wish to make a capture using RegEx
following pattern:

string pattern = @"/[a-z]{2}/products/\d{4}/\(?<fileName>[abc])\.aspx";

string inputString = longString(around 3000 characters);

但是我需要利用这个捕获传递给构造函数

but i need to utilise this capture to pass into a constructor

Object obj = new Obj(capture)

为了加载对象并检索该对象的属性（guid），显然这个guid对于每场比赛都会有所不同。



i需要对regEx模式的每个匹配执行此操作，然后用

in order to load the object and retrieve a property (guid) of that object, obviously this guid will be different for every match.

i need to do this for every match on the regEx pattern, and then replace input string with

"info.aspx?number" + guid;

然后返回完成所有替换的输入字符串。

and then return the input string with all replacements done.

推荐答案

Regex.Replace有一个重载，它采用匹配求值程序方法：

Regex.Replace has an overload that takes a match evaluator method:

string output = Regex.Replace(input, pattern, ReplaceMethod);

    }
private string ReplaceMethod(Match m)
    {
    MyObject obj = new MyObject(m.Value);
    return "info.aspx?number" + obj.Guid.ToString();
    }

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