25 lines
503 B
C++
25 lines
503 B
C++
//当同时存在直接基类和间接基类时，每个派生类只负责其直接基类的构造。
|
|
#include <iostream>
|
|
using namespace std;
|
|
class A {
|
|
int x;
|
|
public:
|
|
A(int aa) {
|
|
x=aa;
|
|
cout<<"Constructing A"<<endl;
|
|
}
|
|
~A(){ cout<<"Destructing A"<<endl; }
|
|
};
|
|
class B:public A {
|
|
public:
|
|
B(int x):A(x){ cout<<"Constructing B"<<endl; }
|
|
};
|
|
class C :public B{
|
|
public:
|
|
C(int y):B(y){ cout<<"Constructing C"<<endl; }
|
|
};
|
|
int main(){
|
|
C c(1);
|
|
system("pause");
|
|
}
|