C#关于Clone()方法的介绍

平常啪啪啪代码的时候,经常遇到浅复制与深复制的问题,下面就本身经验写写,有问题请留言!this

例如我有一个简单的类:spa

class People
{
    public int _age;
    public string _name;
    public People(int Age,string Name)
    {
    _age = Age;
    _name = Name;
    }
}

常见的赋值语句,如:指针

People Mike = new People(12,"Mike");
People Mike2 = Mike;

这是浅复制,共享同一块内存,相似指针,即Mike2与Mike对象同时指向了Mike新建时所申请的内存。
如今我为People类增长一个Clone()方法:code

class People
{
    public int _age;
    public string _name;
    public People(int Age,string Name)
    {
        _age = Age;
     _name = Name;
    }
    public object Clone()
    {
        People MySelf = new People(this._age,this._name);
        return MySelf;    }
}

很明显,调用Clone()方法返回的对象是一个全新的对象,是新实例化出来的对象可是与原对象在值上相等。对象

People Mike = new People(12,"Mike");
People Mike2 = Mike;
People Mike3 = Mike.Clone() as People;

Mike2与Mike3在值上相等,但实际是彻底独立的对象。blog

Mike2._name = "Jone";
//执行上述代码后,Mike的_name属性跟着改变了,而Mike3不变。
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