灯箱效果 JS 请帮忙

Question

我有以下代码：

<script type="text/javascript" >

$(document).ready(function(){
$(".img").click(function(){
var address= $(this).attr("src");
$("#popup").fadeIn("slow");
$("#lightbox").attr("src",address);
});
$("#close").click(function(){
$("#popup").fadeOut("slow");
});
});
    </script>

显然在字符串 $("#lightbox").attr("src",address); "src",address 是一个变量，它应该指向脚本以在灯箱弹出窗口中显示与源地址关联的图像。但是它对我不起作用。我认为这可能是我在图像缩略图上有一个叠加层，但是正如您从下面的代码中看到的那样，叠加层位于图像类 div 内部。有什么建议吗？

<div id="indexcontainer">

    <div class="col col-1">
    <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/_DSC0048.jpg" alt="Symphony In Red -       robertlunaphotography.com" onload="MM_effectGrowShrink(this, 600, '0%', '100%', false, false, true)">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"Symphony in Red"</h4>
    </div>
</div>

    </div>

    <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/_DSC0046alt.jpg" alt="&quot;Second Thoughts&quot;"  longdesc="robertlunaphotography.com">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"Second Thoughts'</h4>
    </div>
</div>
</div>
       <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/LNA_4072.jpg" width="375" height="250" alt="&quot;The Angel of Oaks&quot;" longdesc="robertlunaphotography.com" onload="MM_effectGrowShrink(this, 400, '0%', '100%', false, false, true)"></a>
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"The Angel of Oaks"</h4>
  </div>
</div>
</div>
              <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/LUN_0378.jpg" width="514" height="250" alt="&quot;Table Rock Mountain&quot;" longdesc="robertlunaphotography.com">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"Table Rock Mountain"</h4>
  </div>
</div>
</div>
               <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/_DSC0092_sm.jpg" width="376" height="250" alt="&quot;The  Stranger&quot;" longdesc="robertlunaphotography.com" onload="MM_effectGrowShrink(this, 600, '0%', '100%', false, false, true)">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"The Stranger"</h4>
  </div>
</div>
</div>
                  <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/_DSC0073.jpg" width="250" height="376" alt="&quot;Jessica&quot;" longdesc="robertlunaphotography.com">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"Jessica"</h4>
  </div>
</div>
</div>
                     <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/LNA_5203.jpg" width="375" height="250" alt="&quot;Lake Junaluska&quot;" longdesc="robertlunaphotography.com" onload="MM_effectGrowShrink(this, 600, '0%', '100%', false, false, true)">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"Lake Junaluska"</h4>
  </div>
</div>
</div>
                        <div id="effect-1" class="effects clearfix">

<div class="img"><img src="images/photos/_DSC0204copy.jpg" width="250" height="334"  alt="&quot;Brooke&quot;" longdesc="robertlunaphotography.com">
    <div class="overlay">
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
<h6>&nbsp;</h6>
    <h4>"Brooke"</h4>
</div>
</div>
</div>
</div>
</div>
<div id="popup">
<div id="center">
    <img id="lightbox" src="images/largeones/Symphony-in-Red-Robert-Luna-Photography.com.jpg">
    <img id="close" src="images/index/Close-button-icon-1005031249.png" alt="close" >
</div>  

Answer 1

您的点击处理程序是在类为img 的<div> 元素上定义的。因此，您尝试从 <div> 元素而不是 <img> 元素中获取 src 属性：

$(".img").click(function(){
    // In this function, $(this) refers to <div class="img"> (not <img src="...">)
}

如果您确实需要点击处理程序位于 <div> 元素上，请尝试以下操作：

$(".img").click(function(){
    var address= $(this).children().attr("src");
}

如果您想要 <img> 元素上的点击处理程序，请尝试以下操作：

$(".img img").click(function(){
    var address= $(this).attr("src");
}