• 显示(explicit )与隐式(implicit)转换操作符


        class Program
        {
            static void Main(string[] args)
            {
                /*
                 * 不管是显示还是隐式转换,一种类型都只能出现一次
                 */
    
                Console.WriteLine("************************隐式转换************************");
    
                Parent p = new Parent("wjire", 123);
                string name = p;
                int id = p;
                Console.WriteLine(name);//wjire
                Console.WriteLine(id);//123
    
                Console.WriteLine("************************显示转换************************");
    
                double d = (double)p;
                Parent pp = (Parent)999;
                Console.WriteLine(d);//135.3
                Console.WriteLine(pp.Id + ":" + pp.Name);//999:refuge
                Console.ReadKey();
            }
        }
    
        class Parent
        {
            public string Name { get; set; }
    
            public int Id { get; set; }
    
            public Parent(string name, int id)
            {
                this.Name = name;
                this.Id = id;
            }
    
            public static implicit operator string(Parent p)
            {
                return p.Name;
            }
    
            public static implicit operator int(Parent p)
            {
                return p.Id;
            }
    
            public static explicit operator Parent(int id)
            {
                return new Parent("refuge", id);
            }
    
            public static explicit operator double(Parent p)
            {
                return p.Id * 1.1;
            }
        }
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  • 原文地址:https://www.cnblogs.com/refuge/p/8619245.html
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