<!DOCTYPE html> <html> <head> <meta charset="UTF-8"/> <meta lang="zh"/> <title>select2</title> <script src="js/jquery-3.3.1.js"></script> <link href="css/select2.css" rel="stylesheet" /> <script src="js/select2.js"></script> <script type="text/javascript"> $(document).ready(function () { $('.demo').select2({ ajax: { url: 'https://api.github.com/orgs/select2/repos', data: function (params) { var query = { search: params.term, type: 'public' } return query; } } }); }); </script> </head> <body> <div style="margin-top:20px;"> <select class="demo" name="states[]" multiple="multiple" style=" 200px"> </select> </div> </body> </html>