#include

class CMy_Math

{

public:

CMy_Math();

~CMy_Math();

public:

double add(double a,double b); //加法

double div(double a,double b);//除法

double subtract(double a,double b);//減法

double mult(double a,double b); //乘法

};

CMy_Math::CMy_Math()

{

}

CMy_Math::~CMy_Math()

{

}

double CMy_Math::add(double a,double b)

{

return a+b;

}

double CMy_Math::subtract(double a,double b)

{

return a-b;

}

double CMy_Math::mult(double a,double b)

{

return a*b;

}

double CMy_Math::div(double a,double b)

{

if ( 0.0 != b)

//b不能為0.0

return a/b;

}

int main(double argc, char* argv[])

{

CMy_Math my;

double sum=0;

sum= my.add(10,5);

cout

sum= my.subtract(10,5);

cout

sum= my.subtract(10,5);

cout

sum= my.div(10,5);

cout

return 0;

}