匿名Load Dynamic ComboBox Data
Drop down the panel and select multiple items.
示例：
代码：
<div class="easyui-panel" style="width:100%;max-width:400px;padding:30px 60px;">
<div style="margin-bottom:20px">
<input class="easyui-combobox" name="language[]" style="width:100%;" data-options="
url:'examples/combobox/combobox_data1.json',
method:'get',
valuefield:'id',
textfield:'text',
value:[1,3],
multiple:true,
panelheight:'auto',
label: 'language:',
labelposition: 'top'
">
</div>
</div>