namespace ConsoleApplication1
{
    class Program    {
        static void Main(string[] args)
        {
            Child xiaoMing = new Child();
            xiaoMing._name = "小明";
            xiaoMing._sex = "男";
            xiaoMing._age = 6;
            xiaoMing._height = 120;

            Console.WriteLine("我叫" + xiaoMing._name);
            xiaoMing.PlayBall();

        }
    }
}