Property总结

Property一般用来给field赋值：

private string _name
public string Name
{
    get{return _name;}
    set{_name = value;}
}

可以给Field赋值的不只是property，也可以是constractor或者一个方法，但是如果我们想要向外暴露这个filed我们才需要写property

class Person
{
    private string _name 
    public Person(string name)
    {
        _name = name;
    }
}


//或者

class Person
{
    private string _name 
    public void Person(string name)
    {
        _name = name;
    }
}

我们可以用Setter做更多事

private int _dividend;
        public int Dividend
        {
            get { return _dividend; }
            set
            {
                if (value == 0)
                {
                    throw new ArgumentException("Can not set dividend to 0!");
                }
            }
        }

就算只有一个数据传入口，我们也建议用property，代替public的field

public string Name { get; set;}

一般只有property，event，methord是puublic的其他结构都做private

 

有的时候我们需要set bunch piece of propertys as unit，我们应该用一个方法去set property together

public string Name { get; private set; }
        public string Address { get; private set; }
        public int ZipCode { get; private set; }
        public string State { get; private set; }

        public void SetName(string name)
        {
            Name = name;
        }
        public void Move(string address, int zipCode, string state)
        {
            Address = address;
            ZipCode = zipCode;
            State = state;
        }