程序填空。在下面一段类程序代码中中,请根据注释补充代码。classBase{private:intmem1;//基类的数据成员public:Base(intm1){mem1=m1;}voidoutput(){cout<
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写结果#includeclassPoint{intx,y;public:Point(intx1=0,inty1=0):x(x1),y(y1){cout<<"CP"<
写结果。#includeusingnamespacestd;classP{intpri1,pri2;public:P(intp1,intp2){pri1=p1;pri2=p2;}intinc1(){return++pri1;}intinc2(){return++pri2;}voiddisplay(){cout<
写结果。class B1{ int b1;public: B1(int i) { b1=i; cout<<"CB1" ;} ~B1() { cout<<"DB1"; } void print() { cout<
写结果#includeusingnamespacestd;classA{public:A(){a=0;}A(inti){a=i;}voidPrint(){cout<