dsf

 [ComVisible(true)]
    [ClassInterface(ClassInterfaceType.AutoDual)]
    [ProgId("HelloWorld.MyClass")] //类名

    public class MyClass
    {
        public string UserName { get; set; } //对外提供属性

        public string SayHello(string content) //对外提供方法
        {
            return "用户:" + this.UserName  + "说:" + content;
        }
    }