Experience using jquery select2 (recommended)

<script src="/statics/matrix-admin/js/jquery.min.js"></script>
<script src="/statics/matrix-admin/js/select2.min.js"></script>
 
 
<select id=&#39;mySelect&#39;></select>

$(function(){
 
  $('#mySelect').select2();
 
  $.ajax({
 
    success:function(data){
 
      $('#mySelect').append();
 
      $('#mySelect').select2('val','val1');//调用select2('val','指定项value')方法选中指定项，否则无任何项被选中。如果设置的值不存在，则默认选择第一项
 
    }
 
  })
 
 
})