C# 字符串相似度算法

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace 字符串相似度
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        ******* void button1_Click(object sender, EventArgs e)
        {
            String str1 = textBox1.Text;
            String str2 = textBox2.Text;
            label3.Text = get_semblance_By_2words(str1, str2);
        }

        public static string get_semblance_By_2words(string word1, string word2)
        {
            int re = 0;
            int maxLength;
            int i, l;
            List<string> tb1 = new List<string>();
            List<string> tb2 = new List<string>();
            i = 0;
            l = 1;
            maxLength = word1.Length;
            if (word1.Length < word2.Length)
                maxLength = word2.Length;
            while (l <= word1.Length)
            {
                while (i < word1.Length - 1)
                {
                    if (i + l > word1.Length)
                        break;
                    tb1.Add(word1.Substring(i, l));
                    i++;
                }
                i = 0;
                l++;
            }

            i = 0;
            l = 1;

            while (l <= word2.Length)
            {
                while (i < word2.Length - 1)
                {
                    if (i + l > word2.Length)
                        break;
                    tb2.Add(word2.Substring(i, l));
                    i++;
                }
                i = 0;
                l++;
            }
            foreach (string subStr in tb1)
            {
                int tempRe = 0;
                if (tb2.Contains(subStr))
                {
                    tempRe = subStr.Length * 100 / maxLength;
                    if (tempRe > re)
                        re = tempRe;
                    if (tempRe == 100)
                        break;
                }
            }
            return re.ToString() + "%";
        }

    }
}
 

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