JSONP无法正常工作？

Question

http://jsfiddle.net/baEXg/我不知道为什么它不起作用，“按钮”起作用，$。getJSON以下的任何东西都不起作用

Answer 1

If you want $.getJSON() request to be treated as JSONP you must specify a callback=? in the URL.

It's even in the docs , consult them, they don't bite:

If the URL includes the string "callback=?" (or similar, as defined by the server-side API), the request is treated as JSONP instead.

Here is a forked demo of your code .