Hi! Could we please enable some services and cookies to improve your experience and our website?
Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
// 定义两个变量，保存学生姓名和分数
$studentName = '小明';
$score = 85;
// 判断分数是否为合格的分数值
if (!is_numeric($score) || $score < 0 || $score > 100) {
$grade = '成绩输入不合法，请输入0到100之间的数值';
} else {
// 使用if...else条件判断语句判断成绩等级
if ($score >= 90 && $score <= 100) {
$grade = 'A级';
} elseif ($score >= 80 && $score <= 89) {
$grade = 'B级';
} elseif ($score >= 70 && $score <= 79) {
$grade = 'C级';
} elseif ($score >= 60 && $score <= 69) {
$grade = 'D级';
} else {
$grade = 'E级';
}
}
// 以友好格式显示学生姓名、成绩和等级判断结果
printf("学生姓名：%s\n学生分数：%d分\n成绩等级：%s", $studentName, $score, $grade);