C++ 虚继承与继承的差异

z6_7neR0class base
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    base(){cout<<"base::base()!"<<endl;}51Testing软件测试网a-n2Yo1Qc#FAX
    void printBase(){cout<<"base::printBase()!"<<endl;}51Testing软件测试网9Y x&J7^?0^7v b
};51Testing软件测试网kTV#qwC

class derived:public base
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public:
g\#y-P~,~_-f?0    derived(){cout<<"derived::derived()!"<<endl;}51Testing软件测试网*[%K8w)|8g_3Z/b
    void printDerived(){cout<<"derived::printDerived()!"<<endl;}
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7U-U4F Y*E0class base1
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public:51Testing软件测试网-x:c h%f3x,A,M
    base1(){cout<<"base::base()!"<<endl;}51Testing软件测试网ts
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    void printBase(){cout<<"base::printBase()!"<<endl;}
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class derived1:virtual public base1
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    derived1(){cout<<"derived::derived()!"<<endl;}51Testing软件测试网Yu)\h*`;z Y:b4Cd&[
    void printDerived(){cout<<"derived::printDerived()!"<<endl;}
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7Ux6?2Y$ub.?/e*M0int main(int argc, const char * argv[])
h_1t t'xX0{51Testing软件测试网 H,J {wM6Ys/m
    derived1 oo;51Testing软件测试网8u*o-v3R?(P
    base1 oo1(static_cast<base1>(oo));51Testing软件测试网5M3X5j7Z{g|"qI
    oo1.printBase();51Testing软件测试网] VKoq-L!a)c{
    derived1 oo2 = static_cast<derived1&>(oo1);51Testing软件测试网+Jw
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    oo2.printDerived();
:P K!Q X(I6UV:NX}9DX0    return 0;51Testing软件测试网!LL
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