class Rect{private:float length,width;public:void set(float x,float y);float peri();float area();};void Rect::set(float x,float y){length=x;width=y;}float Rect::peri(){return (length+width)*2;}float Rect::area(){return(length*width);}void main(){Rect r;r.set(1.0f,2.0f);r.peri();r.area();}
為什么vc++輸不出來。
qq_Linjj藍(lán)極光輝_04362138
2016-12-30 16:16:37
