// switch 多分支语句
public static String evaluateGradeWithSwitch(int score) {
// 将分数映射到类别编号
int gradeCategory;
if (score >= 100) {
gradeCategory = 6;
} else if (score >= 90) {
gradeCategory = 5;
} else if (score >= 80) {
gradeCategory = 4;
} else if (score >= 70) {
gradeCategory = 3;
} else if (score >= 60) {
gradeCategory = 2;
} else {
gradeCategory = 1;
}

    // 使用switch语句判断类别编号，并返回对应的评价
    switch (gradeCategory) {
        case 6:
            return "学霸";
        case 5:
            return "优秀";
        case 4:
            return "良好";
        case 3:
            return "中等";
        case 2:
            return "及格";
        default:
            return "不及格";
    }
}