C#常用算法：Dynamic Object

C#常用算法：Dynamic Object2013-11-14Dynamic Object包含在.Net4.0中，该对象可以允许我们在运行时中改变它的类型，有了这种万金油还有什么问题是我们不能解决的呢？我们来看看它的几个使用例子吧：

Var类型和Dynamic类型

public static void TestDynamicObject（）{ //var object and dynamic objectvar varObj = "this is a var object";dynamic dyObj = "this is a dynamic object";Console.WriteLine（varObj）;Console.WriteLine（dyObj）;dyObj = new string[] { dyObj, "I also can do it liking this！" };Console.WriteLine（dyObj[0]）;Console.WriteLine（dyObj[1]）;/*OUT PUT this is a var object this is a dynamic object this is a dynamic object I also can do it liking this！*/}

ExpandObject

public static void TestExpandObject（）{dynamic data = new ExpandoObject（）;data.FirstAttribute = "FirstAttribute";data.SecondAttribute = "SecondAttribute";data.ThirdAttribute = "ThirdAttribute";ArrayList nums = new ArrayList（）;for （int i = 1; i <= 10; i++）{nums.Add（i）;}data.Nums = nums;foreach （int tmp in data.Nums）{Console.WriteLine（tmp）;}Console.WriteLine（data.FirstAttribute）;Console.WriteLine（data.SecondAttribute）;Console.WriteLine（data.ThirdAttribute）;Action GB = （） => { Console.WriteLine（"This is dynamic method."）; };data.MyMethod2 = GB;data.MyMethod2（）;Action<string> GhostBear = a => Console.WriteLine（a）;data.MyMethod = GhostBear;data.MyMethod（"Go！Go！Fighting！"）;/*OUT PUT 1 2 3 4 5 6 7 8 9 10 FirstAttribute SecondAttribute ThirdAttribute This is dynamic method. Go！Go！Fighting！ */}