1 <body>
2 <button id="btn">点击</button>
3 <script src="js/jquery.js"></script>
4 <script>
5 $(function () {
6 $('#btn').click(function () {
7 $.ajax({
8 type: "get",
9 url: "http://localhost:3000/",
10 dataType: 'jsonp',
11 jsonp: 'callback',//键
12 jsonpCallback: 'acb',//值
13 success: function(data){
14 console.log(data);
15 }
16 });
17 });
18 });
19 </script>
20 </body>