$.ajaxSetup cache：这对jquery代码意味着什么

今天我在 Jquery代码中观察到以下内容：

$.ajaxSetup({ cache: false });

这是什么意思？如果缓存的值变为True,会发生什么.

先感谢您

解决方法

阅读 jQuery.ajax()

cache (default: true,false for dataType 'script' and 'jsonp')
Type: Boolean If set to false,it will force requested pages not to be cached by the browser. Note: Setting cache to false will only work correctly with HEAD and GET requests. It works by appending “_={timestamp}” to the GET parameters. The parameter is not needed for other types of requests,except in IE8 when a POST is made to a URL that has already been requested by a GET.