题解 | #判断成绩等级#

用if判断成绩写法

#include <iostream>
using namespace std;

int main() {
    
    int score;
    cin >> score;

    // write your code here......
    if (score >=90 && score <=100)
    {
        cout << "优秀";
    }
    else if (score >=80 && score < 90)
    {
        cout << "良";
    }
    else if (score >=70 && score <80)
    {
        cout << "中";
    }
    else if (score >=60 && score <70)
    {
        cout << "及格";
    }
    else if (score <60 && score >=0)
    {
        cout << "差";
    }
    else 
    {
        cout << "成绩不合法";
    }

    return 0;
}