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