使用c＃在字符数组中插入一个字符串 [英] Insert a string inside a character array using c#

问题描述

我有一个字符串，

I am having a string as,

string strString = "1 I am good and 2 how are you"

我在字符数组中处理了上面的字符串，如下所示，

I processed the above string in character array as below,

Char[] charReader = new Char[strString .ToCharArray()];

在上面的字符数组中，我包含一个字符串，因为我一直在插入一个字符串，这是一个字符串，



预期o / p应为1 htmltag我很好，2个htmltag你好吗

In the above character array, i am including a string as, were ever the number present i am inserting a string along with it,

expected o/p should be 1 htmltag I am good and 2 htmltag how are you

string strInclude = "htmltag";
Char[] charInclude = new Char[strInclude.ToCharArray()];    

如何插入或序列化字符以插入数字旁边的字符串

How to insert or serialize the characters to insert a string next to number

推荐答案

这很复杂，因为你不想去角色数组附近做任何事情：对于插入而言，它们比字符串更难处理！



从识别标记位置开始插入点 - 在这种情况下是数字。

正如简单的正则表达式将为您做的那样：

That's complicated, because you don't want to go anywhere near character arrays to do this: they are harder to work with for inserts than strings are!

Start with identifyign teh location of your "insert points" - in this case the numbers.
As simple regex will do that for you:

\d+\s

Rexex Match包括索引属性 [ ^ ]告诉你它在字符串中的哪个位置找到了这个数字。

然后，您可以将该索引与string.Substring方法一起使用将字符串分成两部分，并从部分构建一个新字符串：

The Rexex Match includes the Index property[^] which tells you where in the string it found the number.
You can then use the index with the string.Substring method to break the string in two, and build a new one from the parts:

string old = "Abcd";
int index = 2;
string new = old.Substring(0, index) + "xx" + old.Substring(index);

会给你一个包含Abxxcd的新字符串。



您可能希望从最后一场比赛向后工作......

Will give you a new string containing "Abxxcd".

You will probably want to work from the last match backwards...

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            string strString = "1 I am good and 2 how are you";

            Char[] charReader =strString.ToCharArray();

            Console.WriteLine();

            string strInclude = "htmltag";

            Char[] charInclude =strInclude.ToCharArray();

            foreach (char ch in charReader)
            {
                if (char.IsNumber(ch) == true)
                {
                    Console.Write(ch+" "+ strInclude);
                }
                else
                   Console.Write(ch.ToString());
            }
            Console.ReadLine();
        }
    }
}

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