简单教程
提交运行
代码编辑器:
<style> table,th { border:1px solid black; } </style> <p>点击按钮返回第二行中每个 th 元素的 headers 属性的值</p> <table id="myTable"> <tr> <th id="name" colspan="3">Name</th> </tr> <tr> <th headers="fname">First name</th> <th headers="mname">Middle name</th> <th headers="lname">Last name</th> </tr> </table> <br> <button onclick="myFunction()">尝试一下</button> <p id="demo"></p> <script> function myFunction() { var table = document.getElementById("myTable"); var txt = ""; for (var i=0; i<table.rows[1].cells.length; i++) { txt = txt + table.rows[1].cells[i].headers + "<br>"; } document.getElementById("demo").innerHTML=txt; } </script>
运行结果: