c#对象初始化

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace nange_1
{
    class A
    {
        public int a=1;//这里和c++不一样的，c#可以再类里面给字段赋值；
        public int b=2;
        public A()
        {
            
            Console.WriteLine("构造函数");
        }
        public A(int a,int b)
        {
            this.a = a;
 this.b = b;
            Console.WriteLine("构造函数");
        }
    }




   class Program
    {
        static void Main(string[] args)
        {   
            A objA = new A();
            Console.WriteLine(objA.a+" "+ objA.b);
            A objB = new A { a = 3, b = 4 };//可以这样初始化对象
            Console.WriteLine(objB.a + " " + objB.b);
            A objC = new A(5, 6);
            Console.WriteLine(objC.a + " " + objC.b);
            Console.ReadLine();
        }
       
    }
}
输出结果如下所示：