から関数を選択するのに問題がありますclass OperateClass
ユーザーに「足し算、引き算、掛け算、割り算のどれをしたいですか？私は：」（メイン）を尋ねます。私が何を入れても、それは関数に行きますint add。私は何が間違っているのですか？
#include <iostream>
using namespace std;
int x = 1;
int number;
int total = 0;
int amt = 1;
int a;
int b;
int c;
int d;
string ans;
class OperateClass{
public:
int add(){
while(x <= 2){
cout << "Enter a number to use to add: " << endl;
cin >> a;
total = total + a;
x++;
amt++;
}
}
int subtract(){
while(x <= 2){
cout << "Enter a number to use to add: " << endl;
cin >> b;
total = total - b;
x++;
amt++;
}
}
int multiply(){
while(x <= 2){
cout << "Enter a number to use to add: " << endl;
cin >> c;
total = total * c;
x++;
amt++;
}
}
int divide(){
while(x <= 2){
cout << "Enter a number to use to add: " << endl;
cin >> d;
total = total / d;
x++;
amt++;
}
}
};
int main()
{
cout << "Do you want to add, subtract, multiply or divide? I want to : " << endl;
cin >> ans;
if(ans == "add"){
OperateClass opOper;
opOper.add();
}
else if (ans == "subtract"){
OperateClass opOper;
opOper.subtract();
}
else if (ans == "multiply"){
OperateClass opOper;
opOper.multiply();
}
else if(ans == "divide"){
OperateClass opOper;
opOper.divide();
}
}
また、この以下の関数は印刷するのに十分ですか？
void print(){
cout << "Your total is: " << total << endl; Where should I call this?
}