c++萌新的题解

解题思路:

注意事项:

参考代码:

#include<bits/stdc++.h>

using namespace std;

int main(){

    //intÊÇÕûÊý 1 2 9 69 100

    //doubleÊÇСÊý 1.2 1.4 2.6 

double b;

cin>>b;

char c;

cin>>c;

if(c=='+')

cout << c + b;

else if(c=='-')

cout<< c - b;

else if(c=='/')

cout<< c / b;

else if(c=='*')

cout << c * b;

}