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谁能帮我做个题C++ 呜呜呜

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谁能帮我做个题C++ 呜呜呜
 
就这点要求就完了?
#include
class Box
{
public:
Box () {m_X = 0;m_Y = 0;}
Box(int nX,int nY) {m_X = nX;m_Y = nY;}
int setOneValue(int nNum = 1) {m_X=nNum;m_y=nNum;}
int getValue(){return m_X+m_Y;}
static void sayHello() {printf("hello world!\n");}
friend int setValue(int nNum1,int nNum2);
private:
int m_X;
int m_Y;
};
main:
#include "Box.h"
int main()
{
Box *myBox1 = new Box();
Box *myBox2 = new Box(1,2);
Box::sayHello();
printf("%d\n",myBox1->getValue());
printf("%d\n",myBox2->getValue());
myBox1->setOneValue();
printf("%d\n",myBox1->getValue());
myBox2->setOneValue(5);
printf("%d\n",myBox2->getValue());
}