<分区>
为什么我的计算器不能正常工作？ Visual Studios 只询问我是否要使用上次成功的构建。
我无法查看用户输入的计算结果是否为字符串吗？
这是我的代码:
#include <iostream>
using namespace std;
int main() {
int operation;
int a;
int b;
cout << "Choose an operation:\n";
cout << "+ = Addition\n";
cout << "- = Subtraction\n";
cout << "* = Multiplication\n";
cout << "/ = Division\n";
cin >> operation;
if (operation == "+") {
cout << "Enter a number! \n";
cin >> a;
cout << "Enter another number! \n";
cin >> b;
sum = a + b;
cout << sum;
}
if (operation == "-") {
cout << "Enter a number! \n";
cin >> a;
cout << "Enter another number! \n";
cin >> b;
sum = a - b;
cout << sum;
}
if (operation == "*") {
cout << "Enter a number! \n";
cin >> a;
cout << "Enter another number! \n";
cin >> b;
sum = a * b;
cout << sum;
}
if (operation == "/") {
cout << "Enter a number! \n";
cin >> a;
cout << "Enter another number! \n";
cin >> b;
sum = a / b;
cout << sum;
}
}