#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);//减法 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不能为0.0 return a/b; } int main(double argc, char* argv[]) { CMy_Math my; double sum=0; sum= my.add(10,5); cout<<"10+5 = "<
