对象初始化器、集合初始化器、自动属性、匿名类型

 //匿名类型，匿名类
            //必须初始化不能为null
            //仍为强类型，只是由编译器去做了
            //优于object,减少了boxing、unboxing
            var i = 10;
            Console.WriteLine(i);

            var user = new { Name = "steve", Age = 10 };
            Console.WriteLine(user.Name + " " + user.Age);
//自动属性
    /// <summary>
    /// 自动属性
    /// </summary>
    class Student
    {
        public string Name
        {
            get;
            set;
        }
        //Age为只读属性
        public int Age
        {
            get;
            private set;
        }
    }
//以上Student类等同于：
 /// <summary>
    /// 自动属性
    /// </summary>
    class Student
    {
        private string _name;
        public string Name
        {
            get { return _name; }
            set { _name = value; }
        }
        private int _age;
        public int Age
        {
            get { return _age; }
            set { _age = value; }
        }
       
    }
 //对象初始化器
            Student zs = new Student { Name = "steve", Age = 10 };
            Console.WriteLine(zs.Name);
            //集合初始化器
            List<Student> list = new List<Student> { new Student { Name = "bob", Age = 11 }, new Student { Name = "tom", Age = 12 } };