委托

最新推荐文章于 2023-02-18 12:22:51 发布

原创最新推荐文章于 2023-02-18 12:22:51 发布 · 348 阅读

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// 委托的使用实例，排序举例

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

namespace _13自定义排序
{
public delegate int MyCompareHandler(string s1, string s2);

    class Program
    {
        static void Main(string[] args)
        {
            string[] arr = "100,20,21,120,1,9".Split(',');

MyCompareHandler cmp;

//cmp = string.Compare;
cmp = CompareByNumber;

            for (int i = 0; i < arr.Length-1; i++)
            {
                for (int j = 0; j < arr.Length - 1 - i; j++)
                {
                    if (cmp(arr[j], arr[j + 1]) > 0)
                    {
                        string t = arr[j];
                        arr[j] = arr[j + 1];
                        arr[j + 1] = t;
                    }
                }
            }
        }

          public static int CompareByNumber(string n1, string n2)
        {
            return Convert.ToInt32(n1) - Convert.ToInt32(n2);
        }
    }
}