对于下面程序,选项正确的是( )。 #include<iostream> using namespace std; class point{ public: void setpoint(unsigned, unsigned); void getpoint(void); private: unsigned x; unsigned y; }; void point::setpoint(unsigned x, unsigned y) { point::x=x; point::y=y; } void point::getpoint(void) { cout<<"x:"<<x<<" "<<"y:"<<y<<endl;} void main(void) { point p1,*p2;p2=π p1.setpoint(20,10); p1.getpoint(); p2->setpoint(1,2); p2->getpoint(); }
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