Simple Calculator

题目描述

Simple Calculator

Write a program which reads two integers a, b and an operator op, and then prints the value of a op b.

The operator op is ‘+’, ‘-‘, ‘*’ or ‘/’ (sum, difference, product or quotient). The division should truncate any fractional part.

输入

The input consists of multiple datasets. Each dataset is given in the following format.

a op b

The input ends with a single ‘?’. Your program should not process for this terminal symbol.

输出

For each dataset, print the value in a line.

重点就在于比较符号是否相等

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b,z,s;
    while(scanf("%d %c %d",&a,&z,&b)!=EOF){
        if (z=='+'){
            s=a+b;
        }
        if (z=='-'){
            s=a-b;
        }
        if (z=='*'){
            s=a*b;
        }
        if (z=='/'){
            s=a/b;
        }
        if (z=='?'){
            return 0;
        }
        cout<<s<<endl;
        s=0;
    }
}

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