:last-child Selector

last-child selector

version added: 1.1.4jQuery(':last-child')

描述: 选择所有父级元素下的最后一个子元素。

:last 只匹配一个单独的元素, :last-child 选择器可以匹配超过一个:为每个父级元素匹配最后一个子元素。

Example:

Finds the last span in each matched div and adds some css plus a hover state.

<!DOCTYPE html>
<html>
<head>
  <style>
  span.solast { text-decoration:line-through; }
  </style>
  <script src="http://code.jquery.com/jquery-latest.min.js"></script>
</head>
<body>
  <div>
    <span>John,</span>
    <span>Karl,</span>
    <span>Brandon,</span>

    <span>Sam</span>
  </div>
  <div>
    <span>Glen,</span>
    <span>Tane,</span>

    <span>Ralph,</span>
    <span>David</span>
  </div>
<script>
    $("div span:last-child")
        .css({color:"red", fontSize:"80%"})
        .hover(function () {
              $(this).addClass("solast");
            }, function () {
              $(this).removeClass("solast");
            });

</script>

</body>
</html>

Demo:

设计酷,jquery1.6 api中文手册