我是 Javascript 新手,遇到了这个问题。我想<li>
根据其中的内容动态设置标签的宽度并相应地滚动。
<html>
<head>
<style type="text/css">
ul.images
{
padding:0px;
margin:0px;
white-space: nowrap;
width:auto;
overflow:hidden;
}
ul.images li
{
line-height:200px;
display: inline;
}
</style>
<script type="text/javascript" src="jquery-1.7.2.js"></script>
<script language="javascript">
$(document).ready(function(){
var totalWidth = $("li.list").width();
totalWidth += 4;
});
function scrollDiv(dir,px) {
alert("heloo");
/*var img_w=document.getElementsByTagName("li").width;
var curr_width = parseInt(img_w);
var scroll_width=(curr_width+4);*/
alert(img_w);
var scroller = document.getElementById("scroller");
if (dir == 'l') {
scroller.scrollLeft -= px;
}
else if (dir == 'r') {
scroller.scrollLeft += px;
}
}
</script>
</head>
<body>
<div style="width:1450px">
<div style="float:left;">
<a href="javascript: void(0);" onClick="scrollDiv('l',totalWidth); return false;" style="display:table-cell;height:155px;vertical-align:middle"><img src="backward.png" height="50" width="50"/></a>
</div>
<div style="width:1220px;float:left">
<ul class="images" id="scroller">
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Tulips.jpg" class="image" alt="anuj" width="200"/></li>
<li class="list"><img src="Penguins.jpg" class="image" alt="anuj" width="200"/></li>
</ul>
</div>
<div style="float:left;">
<a href="javascript: void(0);" onClick="scrollDiv('r',totalWidth); return false;" style="display:table-cell;height:155px;vertical-align:middle;"><img src="forward.png" height="50" width="50"/></a>
</div>
</div>
</body>
</html>
我面临的错误是Error: totalWidth is not defined
任何帮助都会得到帮助