static void Main(string[] args)
{
    Dog dObj=new Dog()
    {
        dogName = "小白",
        dogAge = 1
    };
    Type dType = dObj.GetType();
    //获取字段对象
    FieldInfo fieldDogName = dType.GetField("dogName");
    //获取dObj对象的dogName字段值，即dObj.dogName
    string strName = fieldDogName.GetValue(dObj) as string;
    //设置dObj里dogName字段赋值
    fieldDogName.SetValue(dObj,"小黑");

    Console.WriteLine(dObj.dogName);
    Console.ReadKey();
}

static void Main(string[] args)
{
    Dog dObj = new Dog() {Name = "小白", Age = 1};
    Type dType = dObj.GetType();
    //获取属性对象
    PropertyInfo proName = dType.GetProperty("Name");
    //获取dObj对象的Name属性，即dObj.Name
    string strName = proName.GetValue(dObj) as string;
    //设置dObj里面Name属性值
    proName.SetValue(dObj,"小黑");

    Console.WriteLine(dObj.Name);
    Console.ReadKey();
}

static void Main(string[] args)
{
   Dog dObj=new Dog();
    Type dType = dObj.GetType();
    MethodInfo method = dType.GetMethod("Smile");
    //普通调用方法
    object res1 = dObj.Smile("小白");
    //反射调用dObj的Smile方法，即dObj.Smile("小黑")
    //第一个参数是实例对象，第二个参数是方法的参数数组
    object res2 = method.Invoke(dObj, new object[] {"小黑"});
    
    Console.WriteLine(res1+" \n"+res2);
    Console.ReadKey();
}

static void Main(string[] args)
{
    //方法一：通过Activator 动态创建对象
    Type dType = typeof (Dog);
    //调用带两个参数的构造函数
    Dog dogXB = Activator.CreateInstance(dType,new object[]{"小白",1}) as Dog;
    Console.WriteLine(dogXB.Name+"\t"+dogXB.Age);

    //方法二：使用 构造器 动态创建对象
    Type dTypeXH = typeof (Dog);
    //获得 带两个参数的 构造函数
    ConstructorInfo ctor = dType.GetConstructor(new Type[] {typeof (string), typeof (int)});
    //创建 指定构造函数
    Dog dogXH = ctor.Invoke(new object[] {"小黑", 2}) as Dog;
    Console.WriteLine(dogXH.Name+"\t"+dogXH.Age);
    
    Console.ReadKey();
}