我如何选择使用jQuery的兄弟元素？(How do I select a sibling element using jQuery?)

 你能帮我用这个jQuery选择器吗？ 
 
$(".auctiondiv .auctiondivleftcontainer .countdown").each(function () {
    var newValue = parseInt($(this).text(), 10) - 1;
    $(this).text(newValue);

    if (newValue == 0) {
        $(this).parent().fadeOut();
        chat.verify($(this).parent().parent().attr('id'));
    }
});
 
 基本上，我想选择与每个循环中的.countdown属于同一父级的.bidbutton类的元素： 
 
<div class="auctiondivleftcontainer">
    <p class="countdown">0</p>
    <button class="btn primary bidbutton">Lance</button>                            
</div>  
 
 然后将其应用于该按钮： 
 
$(button here).addClass("disabled");
$(button here).attr("disabled", "");

Can you help me with this jQuery selector?
 
$(".auctiondiv .auctiondivleftcontainer .countdown").each(function () {
    var newValue = parseInt($(this).text(), 10) - 1;
    $(this).text(newValue);

    if (newValue == 0) {
        $(this).parent().fadeOut();
        chat.verify($(this).parent().parent().attr('id'));
    }
});
 
Basically, I want to select the element with .bidbutton class that belongs in the same parent as the .countdown in the each loop:
 
<div class="auctiondivleftcontainer">
    <p class="countdown">0</p>
    <button class="btn primary bidbutton">Lance</button>                            
</div>  
 
And then apply this to that button:
 
$(button here).addClass("disabled");
$(button here).attr("disabled", "");

原文：https://stackoverflow.com/questions/7463242