public delegate void /*委托返回类型*/ GetTelphone(string message); /*委托方法名称*/ //用来得到联系方式的
internal static void Demonstration()
{
var del = (GetTelphone)((message) => { Console.WriteLine($"delegate {message}得到屌丝的电话"); });
var del2 = (GetTelphone)((message) => { Console.WriteLine($"Func {message}得到屌丝的电话"); });
var del3 = (GetTelphone)((message) => { Console.WriteLine($"Action {message}得到屌丝的电话"); });
var del4 = (GetTelphone)((message) => { Console.WriteLine($"Predicate {message}得到屌丝的电话"); });
var del5 = (GetTelphone)((message) => { Console.WriteLine($"EventHandler {message}得到屌丝的电话"); });
GetTelphone instance = null;
instance += del;
instance += del2;
instance += del3;
instance += del4;
instance += del5;
instance.Invoke("媒婆");
}
public static void GetTel(GetTelphone getTelphone)
{
Console.WriteLine(getTelphone.Invoke("媒婆"));
}
