<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<table border="1px">
<tr id="filed">
<td id="id">ID</td>
<td id="title">标题</td>
<td id="category">类型</td>
<td>操作</td>
</tr>
<tr>
<td>1</td>
<td>一起去看流星雨</td>
<td>综艺</td>
<td>
<button onclick="del(this,'id')">删除(获取id)</button>
</td>
</tr>
<tr>
<td>2</td>
<td>孤勇者</td>
<td>激情</td>
<td>
<button onclick="del(this,'title')">删除(获取title)</button>
</td>
</tr>
</table>
</body>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script>
function del(row, filed) {
var tableHeadId = "#filed";
console.log(row);
console.log(getCurrentRowFiledValue(row, filed, tableHeadId));
}
//row，当前行的this对象.filed，需要获取的字段值.tableHeadId，table表头行row的ID值.
function getCurrentRowFiledValue(row, filed, tableHeadId) {
//获取table表头所有td
var fileds = $(tableHeadId).children();
//记录表头中所有的字段
var tableHeadFileds = [];
// 长度-1，是减去操作列.
for (let i = 0; i < fileds.length - 1; i++) {
tableHeadFileds.push(fileds[i].id)
}
//找到当前行，指定的字段值.
for (let i = 0; i < tableHeadFileds.length; i++) {
if (tableHeadFileds[i] == filed) {
//返回当前行的指定字段值.
return $(row).parent().parent().children()[i].innerHTML;
}
}
}
</script>
</html>