CPlusPlusThings/practical_exercises/10_day_practice/day5/虚拟继承/派生类初始化.cpp
2023-01-02 20:39:00 +08:00

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#include <iostream>
using namespace std;
class A {
int a;
public:
A(int x) {
a=x;
cout<<"Virtual Bass A..."<<endl;
}
};
class B:virtual public A {
public:
B(int i):A(i){ cout<<"Virtual Bass B..."<<endl; }
};
class C:virtual public A{
int x;
public:
C(int i):A(i){
cout<<"Constructing C..."<<endl;
x=i;
}
};
class ABC:public C, public B {
public:
//虚基类由最终派生类初始化
ABC(int i,int j,int k):C(i),B(j),A(i) //L1这里必须对A进行初始化
{ cout<<"Constructing ABC..."<<endl; }
};
int main(){
ABC obj(1,2,3);
system("pause");
return 0;
}