我想弄清楚如何截断第一段,我试过：
$div.children( ('p:eq(0)').substring(0,100));
$div.children( ('p:eq(0)'.substring(0,100)));
但两个都没有奏效……
这是完整的代码(有人在这帮助我！)
$j('#hp-featured-item > div[id^="post-"]').each(function() {
var $div = $j(this),$h2 = $div.find('h2:first'),$obj = $div.find('object,embed,img').filter(':first'),id = this.id.match(/^post-([0-9]+)$/);
if( $obj.size() > 0){
// Find parent
var $par = $obj.closest('p');
// Move to top of div
$obj.prependTo($div);
// Remove the now empty parent
$par.remove();
if( $obj.is('img')){
// You can't wrap objects and embeds with links,so make sure we just wrap images
$obj.wrap( $j('<a></a>').attr('href','/blog/?p='+id[1]));
}
}
// Wrap the contents of the h2,not the h2 itself,with a link
$h2.wrapInner( $j('<a></a>').attr('href','/blog/?p='+id[1]) );
$div.children( ('p:eq(0)').substring(0,100));
$div.children('p:gt(0)').remove();
});
解决方法
这应该工作：
$fC = $div.children("p:first-child");
$fC.html($fC.html().substring(0,100));
经过测试：它对我有用.我的模拟代码：http://pastebin.com/f737f7ce9
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