jsonp 示例
1. 从url拿json
2.处理response的json
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<title>jsonp sample</title>
</head>
<body>
<div id="gists">
</div>
<script>
$(document).ready(function(){
$.getJSON('https://api.github.com/gists?callback=?', function(response){
$.each(response.data, function(i, gist){
$('#gists').append('<li>' + gist.comments_url);
});
});
});</script>
</body>
</html>