我必须转换这个C++代码classA{public:intx_A;voidsetX_A(intnewx){x_A=newx;}voidprintX_A(){printf("x_Ais%d",x_A);}};classB:publicA{public:intx_B;voidsetX_B(intnewx){x_B=newx;}voidprintX_B(){printf("x_Bis%d",x_B);}};main(){AobjA;BobjB;objA.setX_A(2);objA.printX_A();objB.printX_A();objB.setX_B(5);objB.printX_B
