List：对象 Equals、Contains

ylbtech-List：对象 Equals、Contains

1.返回顶部

1.1、

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

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            Person dal1 = new Person() { Id = 101, Name = "rain" , Age=10 };
            Person dal2 = new Person() { Id = 101, Name = "rain" , Age=10.0M};
            Person dal3 = new Person() { Id = 101, Name = "rain" };
            Person dal4 = new Person() { Id = 101, Name = "rain" };
            Person dal5 = new Person() { Id = 101 };

            List<Person> dals1 = new List<Person>();
            dals1.Add(dal1);
            dals1.Add(dal3);

            Console.WriteLine("{0}", dal3.Equals(dal3));
            Console.WriteLine("{0}", dal3.Equals(dal4));
            Console.WriteLine("----------------");

            Console.WriteLine("{0}", dals1.Contains(dal1));
            Console.WriteLine("{0}", dals1.Contains(dal2));
            Console.WriteLine("{0}", dals1.Contains(dal3));
            Console.WriteLine("----------------");
            Console.WriteLine("{0}", dals1.Contains(new Person() { Id = 101, Name = "rain" }));
            Console.WriteLine("----------------");
            Console.WriteLine("{0}", dals1.Contains(dal4));
            Console.WriteLine("{0}", dals1.Contains(dal5));
            Console.WriteLine("----------------");
            Console.WriteLine("{0}", dals1.Remove(dal1));
            Console.WriteLine("{0}", dals1.Contains(dal1));
            Console.Read();

        }
    }
    class Person
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public decimal Age { get; set; }
    }
}

1.2、input

True
False
----------------
True
False
True
----------------
False
----------------
False
False
----------------
True
False

2、

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作者：ylbtech 出处：http://ylbtech.cnblogs.com/ 本文版权归作者和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。