正则表达式为子字符串 [英] Regex for a substring

问题描述

如果我有A02 ----- A05或A10 ---- A15它不应该转换为ABC



例子..

如果我有BDC，ASD，DFS，A02，A04，A13，QAS，ZXA



我需要用BDC，ASD，DFS，ABC替换它，ABC，ABC，QAS，ZXA

可能不是我有A02，A03 ...... A05和A10，A11，...... A15。我的样品系列可以包含A02 ---- A05或A10 --- A15。请使用Regex.match帮助使用正则表达式



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我尝试了什么：



我试过Regex.IsMatch（val，A0 [2-5]））| （Regex.IsMatch（val，A1 [0-5]）

但是这样做是将整行替换为ABC。但我不希望这样。我希望所有其他的都存在只需替换以A0开头的那些。

If I have A02 ----- A05 or A10 ---- A15 it should not convert to ABC

example..
If i have BDC, ASD, DFS, A02, A04, A13, QAS,ZXA

I need to replace it with BDC, ASD, DFS, ABC, ABC, ABC, QAS,ZXA
It might not be that I have aa of A02, A03... A05 and A10, A11, .... A15. My sample line can have anything from A02----A05 or from A10 --- A15. Please help with a regular expression for this using Regex.match

Thanks in advance

What I have tried:

I tried Regex.IsMatch(val, "A0[2-5]")) | (Regex.IsMatch(val, "A1[0-5]")
But what this is doing is replacing whole line to only ABC. But I do not want that. I want all the others existing with just replacing the ones starting with A0.

推荐答案

您应该尝试使用Expresso进行试验：

Expresso - 用于构建和测试正则表达式的工具 [ ^ ]



在此处下载最新版本：

下载Expresso [ ^ ]



作为一般建议，在这种情况下，您可能需要查看正则表达式组。

You should try experimenting with Expresso:
Expresso - A Tool for Building and Testing Regular Expressions[^]

Download the most recent version here:
Download Expresso[^]

As a general advice, in this case you might want to look into regex groups.

尝试使用正则表达式的替换（）：

Try using Regex's Replace():

using System;
using System.Text.RegularExpressions;

namespace ConsoleApplication16
{
  class Program
  {
    static readonly Regex Pattern = new Regex("A0[2-5]|A1[0-5]", RegexOptions.Compiled);
    
    static void Main(string[] args)
    {
      string input = "BDC, ASD, DFS, A02, A04, A13, QAS,ZXA";
      string replacement = "ABC";
      Console.WriteLine(input);
      string output = Pattern.Replace(input, replacement);
      Console.WriteLine(output);
      Console.ReadLine();
    }
  }
}

给：

Gives:

BDC, ASD, DFS, A02, A04, A13, QAS,ZXA
BDC, ASD, DFS, ABC, ABC, ABC, QAS,ZXA

如果您想使用RegEx，可以使用以下几种工具来帮助调试。

Debuggex：在线可视正则表达式测试器。 JavaScript，Python和PCRE。 [ ^ ]

.NET正则表达式测试程序 - 正则表达式风暴 [ ^ ]

If you want to play with RegEx, here is a couple tools to help debugging.
Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]
.NET Regex Tester - Regex Storm[^]

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