console
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
</style>
<script>
</script>
</head>
<body>
<table>
<caption>考试成绩表</caption>
<tr>
<td>小明</td>
<td>80</td>
<td>80</td>
<td>80</td>
</tr>
<tr>
<td>小红</td>
<td>90</td>
<td>90</td>
<td>90</td>
</tr>
<tr>
<td>小杰</td>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
</table>
<ul id="list">
<li>HTML</li>
<li>CSS</li>
<li>JavaScript</li>
<li>jQuery</li>
<li>Vue.js</li>
</ul>
<button id="btn">删除</button>
</body>
</html>
table{
border-collapse:collapse;
}
table,tr,td{
border:1px solid gray;
}