static void Main2(string[] args)
{
Calculator calculator = new Calculator();
//事件触发者
CalcMethod method = new CalcMethod();
//事件绑定,订阅事件
calculator.CalcEvent += method.Add;
calculator.Calc(100, 200);
calculator.CalcEvent += method.Substract;
calculator.Calc(100, 200);
//事件注销
calculator.CalcEvent -= method.Add;
calculator.Calc(100, 200);
Console.ReadKey();
}
static void Main2(string[] args)
{
Calculator calculator = new Calculator();
//事件触发者
CalcMethod method = new CalcMethod();
//事件绑定,订阅事件
calculator.CalcEvent += method.Add;
calculator.Calc(100, 200);
calculator.CalcEvent += method.Substract;
calculator.Calc(100, 200);
//事件注销
calculator.CalcEvent -= method.Add;
calculator.Calc(100, 200);
Console.ReadKey();
}