当编写以下代码时,它们的区别是什么:for (int i = 0; i < 100000000; i++) parcel = (MyClass)Activator.CreateInstance(typeof(MyClass));
for (int i = 0; i < 100000000; i++) parcel = Activator.CreateInstance<MyClass>();
If MyBase.OpenFormName <> "" Then App.mfrmMDI.OpenForm(MyBase.OpenFormName, DirectCast(Activator.CreateInstance当它到达时
DirectCast(Activator.CreateInstance(GetType(T), New Object()), T)
我和Activator.CreateInstance有一些麻烦。它抛出"Constructor on type not“异常。precedantsCollection.Add(calculation.properties[precedant]); calculation.properties.Add((Property)Activator.CreateInstancearguments[0] = dataProvider;calculation.prop