送积分啦,PHP判断单科成绩的小code,出错了,小白白不知道哪里的问题,呜呜呜,谁来帮帮我?呜呜呜

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无标题文档</title>
    <style type="text/css">
        body{
            font-size:18px;
        }
    </style>
</head>

<body>
        <?php
            $str='';
        if(isset($_GET['1name'])) {
            $name = $_GET['1name'];
            if (!empty($name)) {
                if (!is_numeric($name)) {
                    if (isset($_GET['lscore'])) {
                        $score = $_GET['lscore'];
                        if (!empty($score)) {
                            if (is_numeric($score)) {
                                if ($score >= 0 && $score <= 100) {
                                    switch ((integer)($score / 10))//0,1,2,3,...,10
                                    {
                                        case 10:
                                            $str = 'A+';
                                            break;
                                        case 9:
                                            $str = 'A';
                                            break;
                                        case 8:
                                            $str = 'B';
                                            break;
                                        case 7:
                                            $str = 'C';
                                            break;
                                        case 6:
                                            $str = 'D';
                                            break;
                                        default:
                                            $str = 'fail';
                                            break;
                                    }
                                } else {
                                    $str = "成绩过高,抄书十遍!";}
                            } else {
                                $str = "成绩是数学?Are you a fool?";}
                        } else {
                            $str = "成绩不能为空!";}
                    }
                } else {
                    $str = "姓名不能为数字!";}
            } else {
                $str = "姓名不能为空!";}
        }


        ?>
<form action="#" method="get">
    请输入学生的姓名:
    <input type="text"  name="lname" value="<?php if(!empty($_POST["lname"])){ echo $_GET["lname"] ;} ?>" /><br />
    请输入学生的成绩:
    <input type="text"  name="lscore" value="<?php if(!empty($_POST["lscore"])){echo $_GET["lscore"];} ?>" /><br />
    <input type="submit" value="提交" />
</form>
        <?php
        echo $str;
        ?>
</body>
</html>


侠客岛的含笑
浏览 1687回答 3
3回答

echo1111

function xxxXX($params1,$params2) {     if(!isset($_GET['name'])) {         return '请输入你的姓名';     }     if(!isset($_GET['score'])) {         return '请输入你的姓名';     }     ..... }我觉得你这样写好一点,代码可读性更强
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