Correction status:Uncorrected
Teacher's comments:
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>自动生成表格工具</title> <style> h3 { color: green; margin-left: 40px; } button { border: none; background-color: green; margin-left: 40px; color: white; padding: 5px; } button:hover { background-color: lightgrey; color: black; } </style> </head> <body> <h3>自动生成表格工具</h3> <p><label>输入表格的名称:<input type="text" name="title"></label></p> <p><label>输入行:<input type="text" name="rows"></label></p> <p><label>输入列:<input type="text" name="cols"></label></p> <p> <button>生成表格</button> <button>重置表格</button> </p> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script> //创建标识,防止重复请求 var flag = true; $('button:first').click('on', function () { //第一步:遍历并验证用户信息 //$(选择器).each(对象索引,当前对象) $(':input').not('button').each(function (index, obj) { if ($(obj).val().length == 0) { //非空判断 $(obj).after('<span style="color: red">不能为空</span>') setInterval(function () { $(obj).next().remove() }, 2000) } else if (isNaN($(obj).val())) { //非数字判断 $(obj).after('<span style="color: red">必须是数字</span>') setInterval(function () { $(obj).next().remove() }, 2000) } else if ($(obj).val() <= 0) { //非零判断 $(obj).after('<span style="color: red">必须大于零</span>') setInterval(function () { $(obj).next().remove() }, 2000) return false } }) //处理用户请求 if (flag == true) { $.get( 'data.php', { title: $(':input[name="title"]').val(), rows: $(':input[name="rows"]').val(), cols: $(':input[name="cols"]').val() }, function (data) { $('p:last').next().remove() $('p:last').after(data) flag == false }) } }); //重置按钮 $('button').eq(1).click(function () { $(':input').not('button').val(""); $('input').eq(0).focus(); $('p:last').next().remove(); flag = true; }) </script> </body> </html>
点击 "运行实例" 按钮查看在线实例
<?php //判断用户的请求类型是否合法,必须是GET if ($_SERVER['REQUEST_METHOD'] == 'GET') { //如果用户发送的数据存在且不为空 if (!empty($_GET['title']) && !empty($_GET['rows']) && !empty($_GET['cols'])) { $title = $_GET['title']; $rows = $_GET['rows']; $cols = $_GET['cols']; //创建表格基本结构 $table = '<table border="1" cellspacing="0" cellpadding="3" align="center" width="80%">'; $table .= '<caption style="margin-bottom: 20px;font-size: 16px;font-weight:bold;color: green">' . $title . '</caption>'; //生成表头 $table .= '<tr align="center" bgcolor="#add8e6">'; for ($i = 0; $i < $cols; $i++) { $table .= '<th>X</th>'; } $table .= '</tr>'; //生成表格内容区 for ($r = 0; $r < $rows; $r++) { $table .= '<tr>'; for ($c = 0; $c < $cols; $c++) { $data = $r * $cols + $c; $table .= '<td align="center">' . ++$data . '</td>'; } $table .= '</tr>'; } $table .= '</table>'; echo $table; exit(); } } else { exit('<span style="color: red">非法请求</span>'); }
点击 "运行实例" 按钮查看在线实例