public static void TestRun()
{
TestDg dg1 = new TestDg(Method1);
TestDg dg2 = new TestDg(new DelegateChainTest().Method2);
TestDg dg3 = new TestDg(new DelegateChainTest().Method3);
//定义委托链
TestDg dgChain = null;
dgChain += dg1;
dgChain += dg2;
dgChain += dg3;
dgChain += dg2;
dgChain -= dg2;
CallDgChain(dgChain);
//Console.WriteLine(dgChain(11));
Console.ReadKey();
}
private static void CallDgChain(TestDg dgChain)
{
if (dgChain != null)
{
//遍历委托对象的调用列表，调用关联的所有委托对象
Delegate[] dgArray = dgChain.GetInvocationList();
foreach (TestDg item in dgArray)
{
try
{
Console.WriteLine(item(11) + Environment.NewLine);
}
catch (Exception ex)
{
Console.WriteLine($"{item.Method.Name} {ex.Message} " + Environment.NewLine);
}
}
}
}
