您好!
我想知道我怎样才能改变背景的div中的图像类缩进级别0当我在div单击类如
categorylist$("。categorylist")。点击(函数(){
/ /改变背景图片 - this.categorylist格类="缩进级别0"
再次切换到其他图像,当我再次点击
<div class="categorylist ">
<div class="indentation level3">
<div class="indentation level2">
<div class="indentation level1">
<div class="indentation level0">
<a href="http://localhost/moodle/course/category.php?id=19">level4</a>
</div>
</div>
</div>
</div>
</div>
<div class="categorylist ">
<div class="indentation level3">
<div class="indentation level2">
<div class="indentation level1">
<div class="indentation level0">
<a href="http://localhost/moodle/course/category.php?id=19">level4</a>
</div>
</div>
</div>
</div>
</div>