While 迴圈之成績判斷參考解答

while-score.cpp

#include <iostream>
using namespace std;

int main()
{
    int score;
    
    cout << "==========================================\n";
    cout << "成績判定，輸入範圍 0 ~ 100，超過範圍就掰掰\n";
    cout << "==========================================\n";
    
    while (true) {
        cout << "請輸入成績：";
        cin >> score;
        
        if (score > 100 || score < 0) {
            break;
        } else if (score >= 90) {
            cout << "分析結果：高分，你好厲害\n";
        } else if (score > 60) {
            cout << "分析結果：及格，勉強接受啦\n";
        } else if (score == 60) {
            cout << "分析結果：剛好及格，驚險過關\n";
        } else { 
            cout << "分析結果：不及格，加油好嗎\n";
        }
    }
    
    cout << "程式結束，掰掰！";
    
    return 0;
}