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[单选题]
假定MyClass为一类,执行MyClass a,b(2),*p[2];语句时会自动调用该类构造函数()次。
A.2
B. 3
C. 4
D. 5
查看答案
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.2
B. 3
C. 4
D. 5
a为MyClass类对象,“static void SetRate(double r){...}”是MyClass类的静态成员函数,则执行语句“a.SetRate(0.05);”时,SetRate成员函数中的this指针指向对象a的地址。()
A.internal MyClass() {}
B.public MyClass(){Count = 0;Msg = null;}
C.public MyClass{}
D.不存在
A.0
B.2
C.3
D.6
class BaseClass
{
public int i;
}
class MyClass:BaseClass
{
public new int i;
}
则下列语句在Console 上的输出为_______.
MyClass y = new MyClass();
BaseClass x = y;
x.i = 100;
Console.WriteLine("{0}, {1}",x.i,y.i);
A.0,0
B.100,100
C.0,100
D.100,0
A.obj.Hello();
B.obj::Hello();
C.Myclass.Hello();
D.Myclass::Hello();
A.private
B.protected
C.internal
D.public
A.正确
B.错误
A.7,4,4
B.8,4,4
C.7,3,4
D.7,3,5
A.正确
B.错误