class Point｛

private:

       float x , y;

public:

       Point( float a , float b ): x (a) , y (b){}

｝；

對象數組 作形式參數 

float lineFit ( const  Point   points [] , int  nPoint )

主函數中的初始化 

int main (){

       Point p[6] = { Point ( 1 , 3 ) , Point ( 2 , 4 ) , Point ( 4 , 5 ) , Point ( 6 , 8 ) , Point ( 9 , 12 ) , Point ( 8 , 13 ) }

　　 return 0；

｝