Program.cs

c#
using System;

namespace Equals判断相等 {
  class Program {
    static void Main(string[] args) {
      //ToString Equals Object
      int a = 12;
      int b = 34;
      Console.WriteLine(a.Equals(b)); // 值为Flase  a == b

      string str1 = "siki";
      string str2 = "siki";
      Console.WriteLine(str1.Equals(str2));

      Student stu1 = new Student(18, "小芳");
      Student stu2 = new Student(18, "小芳");
      //默认方法值为Flase         重写Equals方法后值为True
      Console.WriteLine(stu1.Equals(stu2));
      Console.WriteLine(stu1 == stu2);
    }
  }
}

Student.cs

c#
using System;
using System.Collections.Generic;
using System.Text;

namespace Equals判断相等 {
  class Student {
    private int age;
    private string name;

    public Student(int age, string name) {
      this.age = age;
      this.name = name;
    }

    public override bool Equals(object obj) //重写Equals方法
    {
      Student stu = (Student) obj; //强制转换
      if (age == stu.age && name == stu.name) {
        return true;
      }
      return false;
    }
  }
}