变量get、set设置

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

namespace Demo
{   

    public class MyClass
    {
        public readonly string Name; // 定义只读变量
        private int intVal;          // 私有过渡变量

        public int Val // 公开变量,对其进行get、set设置
        {
            get
            {
                return intVal;
            }
            set
            {
                if(value >= 0 && value <= 10)
                {
                    intVal = value;
                }
                else
                {
                    throw (new ArgumentOutOfRangeException("Val", value, "值必须在0到10之间。"));
                }
            }
        }

        public override string ToString() // 重构ToString方法
        {
            return "Name:" + Name + "
Val:" + Val;
        }

        public MyClass(string newName) // 构造函数
        {
            Name   = newName;
            intVal = 0; 
        }

        static void Main(string[] args)
        {
            MyClass objectA = new MyClass("China!");
            objectA.Val = 11; // 报错,因为已经限定了值的范围
            Console.WriteLine("{0}",objectA.ToString());
            Console.ReadKey();
        }
    }
}
原文地址:https://www.cnblogs.com/jiqing9006/p/6763517.html