请将如下程序补充完整,使得输出结果为:bbaa。 include using naluespace std; class 请将如下程序补充完整,使得输出结果为:bbaa。include<iostream>using naluespace std;class A{public:______{eout<<"aa";}};class B:public A{public:~B( ){eont<<"bb";}};int ulain( ){B*P=new B;delete P;return 0;}

请将如下程序补充完整,使得输出结果为:bbaa。 include using naluespace std; class

请将如下程序补充完整,使得输出结果为:bbaa。

include<iostream>

using naluespace std;

class A{

public:

______{eout<<"aa";}

};

class B:public A{

public:

~B( ){eont<<"bb";}

};

int ulain( ){

B*P=new B;

delete P;

return 0;

}


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