我有一个元素列表(样式取自引导程序),我想使用文本输入向其中添加更多元素。这是我的代码-
<div class="col-lg-6">
<div class="input-group">
<input type="text" id = "input" class="form-control">
<span class="input-group-btn">
<button class="btn btn-default" type="button" id = "add" >Add</button>
</span>
</div><!-- /input-group -->
<form>
<ul class="list-group" id = "tagList">
<li class="list-group-item"> <b>Tags </b></li>
<li class="list-group-item"> <span class ="input-group-addon">
<input type="radio">
</span>Apple</li>
<li class="list-group-item"> <span class ="input-group-addon">
<input type="radio">
</span> Orange</li>
<li class="list-group-item"> <span class ="input-group-addon">
<input type="radio">
</span> Pear</li>
<li class="list-group-item"> <span class ="input-group-addon">
<input type="radio">
</span> Banana</li>
</ul>
</form>
<script src="http://codeorigin.jquery.com/jquery-2.0.3.js"></script>
<script>
$('#add').click(function(){
var text = $('#input').val();
if(text.length){
$('<li />', {html: text}).appendTo('ul.tagList')
}
});
</script>
我可以让代码使用更简单的列表,但不能使用这个。谁能发现为什么不呢?