摘要: 1.将会重用的元素缓存 //bad var h = $('#hello').height(); $('#hello').css('height',h-20); //good var $hello = $('#hello'), h = $hello.height(); $hello.css('heig 阅读全文
posted @ 2017-02-27 23:15 chuanzhi946 阅读(231) 评论(0) 推荐(0)