获取两个字符串之间的共同部分C# [英] Get common part between two strings c#

问题描述

我需要的是获得两个单词之间的共同部分，并获得差异.

What I need is to get the common part between two words and get the differences too.

示例:

场景1

• word1 = 推荐
• word2 = 测试

• word1 = Testimonial
• word2 = Test

会回来

• 公用部分测试，差异个人

• Common part Test, difference imonial

场景2

• word1 = 测试
• word2 = 推荐

• word1 = Test
• word2 = Testimonial

会回来

• 公用部分测试，差异个人

• Common part Test, difference imonial

场景3

• word1 = 推荐
• word2 = 特斯拉

• word1 = Testimonial
• word2 = Tesla

会回来

• 公用部分 Tes ，差异 timonial 和 la

• Common part Tes, difference timonial and la

两个单词的共同部分总是在开头.

The common part of both words are always on the beginning.

换句话说，我需要保留单词的开头，直到单词变得不同为止，而不是需要获得差异.

In other words, I need to preserve the begin of the word until the words get different, than I need to get the differences.

我正试图避免使用很多if和for.

I'm trying to do that avoid using a lot of if's and for's.

谢谢你们.

推荐答案

class Program
{
    static void Main(string[] args)
    {
        string word1 = "Testimonial";
        string word2 = "Tesla";

        string common = null;
        string difference1 = null;
        string difference2 = null;

        int index = 0;
        bool same = true;

        do
        {
            if (word1[index] == word2[index])
            {
                common += word1[index];
                ++index;
            }
            else
            {
                same = false;
            }

        } while (same && index < word1.Length && index < word2.Length);

        for (int i = index; i < word1.Length; i++)
        {
            difference1 += word1[i];
        }

        for (int i = index; i < word2.Length; i++)
        {
            difference2 += word2[i];
        }

        Console.WriteLine(common);
        Console.WriteLine(difference1);
        Console.WriteLine(difference2);
        Console.ReadLine();
    }
}

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