实现使用bootstrap-select插件
http://silviomoreto.github.io/bootstrap-select
<!DOCTYPE html>
<html>
<meta charset="UTF-8">
<head>
<title>jQuery bootstrap-select可搜索多选下拉列表插件-www.daimajiayuan.com</title>
<script src="../../js/jquery-1.9.1.js"></script>
<!-- 3.0 -->
<link rel="stylesheet" href="../../js/bootstrap/bootstrap.css">
<script src="../../js/bootstrap/bootstrap.min.js"></script>
<script src="../../js/bootstrap/bootstrap-select.js"></script>
<link rel="stylesheet" href="../../js/bootstrap/bootstrap-select.css">
<script type="text/javascript">
$(window).on('load', function () {
$('.selectpicker').selectpicker({
'selectedText': 'cat'
});
// $('.selectpicker').selectpicker('hide');
});
</script>
</head>
<body>
<div class="container">
<form class="form-horizontal" role="form1">
<div class="form-group">
<label for="bs3Select" class="col-lg-2 control-label">Test bootstrap 3 选择器form</label>
<div class="col-lg-10">
<select id="bs3Select1" class="selectpicker show-tick form-control" multiple data-live-search="true">
<option value="cowVal">cow</option>
<option value="1">bull</option>
<option class="get-class" disabled>ox</option>
<optgroup label="test" data-subtext="another test" data-icon="icon-ok">
<option value="2">ASD</option>
<option value="3" selected>Bla</option>
<option value="4">Ble</option>
<option value="5">8送洗Ble</option>
</select>
</div>
</div>
</form>
</div>
<!--<label for="id_select">选择器Test label YEag</label>
<select id="id_select" class="selectpicker bla bla bli" multiple data-live-search="true">
<option>cow</option>
<option>bull</option>
<option class="get-class" disabled>ox</option>
<optgroup label="test" data-subtext="another test" data-icon="icon-ok">
<option>ASD</option>
<option selected>Bla</option>
<option>Ble</option>
</optgroup>
</select>
<div class="container">
<form class="form-horizontal" role="form">
<div class="form-group">
<label for="bs3Select" class="col-lg-2 control-label">Test bootstrap 3 选择器 单选</label>
<div class="col-lg-10" id="selectsig">
<select class="selectpicker show-tick form-control" data-live-search="true"
tittle="选择器单选">
<option>cow 固定</option>
<option>bull</option>
<option>ASD</option>
<option>Bla</option>
<option>Ble</option>
</select>
</div>
</div>
</form>
</div>-->
<button id='reset'>重置</button>
</body>
<script type="text/javascript">
function reset() {
$('.selectpicker').val('cowVal');
$('.selectpicker').selectpicker('render');
console.log('END')
}
$(() => {
$('#reset').on('click', () => {
reset()
})
})
</script>
</html>
重置选择值时，需要手动调用（‘render’）要不会造成网页刷新
$('.selectpicker').val('cowVal');
$('.selectpicker').selectpicker('render');
