jQuery jquery选择每组除最后一个之外的所有元素
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/2401109/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
jquery selecting all elements except the last per group
提问by Anthony
I have a table that looks like:
我有一张看起来像的表：
<table>
<tr>
<td>one</td><td>two</td><td>three</td><td>last</td>
</tr>
<tr>
<td>blue</td><td>red</td><td>green</td><td>last</td>
</tr>
<tr>
<td>Monday</td><td>Tuesday</td><td>Wednesday</td><td>last</td>
</tr>
</table>
What I want is a jquery selector that will choose all but the last tdof each table row. I tried:
我想要的是一个 jquery 选择器，它将选择td每个表行的最后一行。我试过：
$("tr td:not(:last)").css("background-color","red");
//changing color just as a test...
But instead of all cells but the last on each row being changed, all cells but the very last one in the table are selected. Similarly, if I change it to:
但是，除了每行最后一个单元格之外的所有单元格都被更改，而是选择了表格中除最后一个单元格之外的所有单元格。同样，如果我将其更改为：
$("tr td:last").css("background-color","red");
the only one that changes is the very last cell. How do I choose the last (or not last) of each row?
唯一改变的是最后一个单元格。如何选择每一行的最后一个（或不是最后一个）？
回答by Nick Craver
Use this:
用这个：
$('tr td:not(:last-child)').css('background-color', 'red');
It's saying each <td>that's not the last in that particular <tr>
它说每一个<td>都不是那个特定的最后一个<tr>
回答by Alex Bagnolini
$('tr').find('td:not(:last)').css('background-color', 'red');
Translates to: for each element in $('tr')selector, do a find()for all tds that are not last.
New result is about tds now, so you can apply .css()as wanted.
转换为：对于$('tr')选择器中的每个元素，find()对所有td不在最后的 s执行 a 。
新的结果现在大约td是 s，因此您可以.css()根据需要申请。
