static void Main(string[] args)
{
//实例化实现了接口的类
Person p = new Person();
p.Name = "李四";
p.IsMan(true);
p.Hello();
p.Work();
//将接口的引用类型指向实现类
IDemoTest idt = p;
//将接口强制转换为Person类
Person p1 = (Person)idt;
p1.Hello();
p1.Work();
}
public WeatherForecastController(ILogger <WeatherForecastController> logger, IDemoTest test)
{
_logger = logger;
_test = test;
}