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我有这个元素,我会知道如何在下拉菜单中留下留胡子的元素?如何渲染这个带有胡子和下拉的js
<script type="text/javascript">
function Mycategory_id() {
$("#myAjax").on('click', function(){
$.ajax({
url: 'http://www.my_ajax_file.php',
dataType: 'json',
success: function(data){
//data returned from php
var options_html = '';
for(index in data){
var category_id = data[index]['categories_id'];
var category_name = data[index]['categories_name'];
options_html += '<option value="'+category_id+'">' + category_name + '</option>';
}
$('#category_id').html(options_html);
}
});
)};
</script>