public Form1() { InitializeComponent(); //创建简单对象 HelloSimpleObjectClass helloSpObj = new HelloSimpleObjectClass(); //加法方法测试 int iSum = helloSpObj.SumLong(9, 99); //读描述属性 String strA = helloSpObj.Description; //写描述属性 helloSpObj.Description = "我在C#中运行,我是新的描述属性!"; //读描述属性 String strB = helloSpObj.Description; }