#include <iostream>
using namespace std;
int main() {
    int a,b;
    char n;
    cin >> a >> b >> n;
    if(n = '/' && b == 0) {
        cout << "Divided by zero!" << endl;
        return 0;
    }
    if(n == '+') {
        cout << a+b << endl;
    }else if(n == '-') {
        cout << a-b << endl;
    }else if(n == '*') {
        cout << a*b << endl;
    }else if(n == '/') {
        cout << a/b << endl;
    }else{
        cout << "Invalid operator!" << endl;
    }
   

return 0;
}

运行输入样例：1 2 +
本应输出：3
实际输出：Invalid operator!
求大神帮忙看看哪里的问题

[此贴子已经被作者于2018-7-12 22:01编辑过]

if(n = '/' && b == 0) 这里是不是想写双等号?

#include <iostream>
using namespace std;
int main() {
    int a, b;
    char n;
    cin >> a >> b >> n;
    if (n = '/' && b == 0) //这里if (n == '/' && b == 0)
    {
        cout << "Divided by zero!" << endl;
    }
    if (n == '+') {
        cout << a + b << endl;
    }
    else if (n == '-') {
        cout << a - b << endl;
    }
    else if (n == '*') {
        cout << a*b << endl;
    }
    else if (n == '/') {
        cout << a / b << endl;
    }
    else{
        cout << "Invalid operator!" << endl;
    }

    system("pause");
    return 0;
}

应该这样写if(n==‘/’&&b==0)