www.gusucode.com > mxcz 游戏微信朋友圈小游戏源码程序 > mxcz/css/animframe_polyfill.js

    (function(){var e=0,t=["webkit","moz"];for(var n=0;n<t.length&&!window.requestAnimationFrame;++n)window.requestAnimationFrame=window[t[n]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[t[n]+"CancelAnimationFrame"]||window[t[n]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(t){var n=(new Date).getTime(),r=Math.max(0,16-(n-e)),i=window.setTimeout(function(){t(n+r)},r);return e=n+r,i}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(e){clearTimeout(e)})})()