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利用JS给博客左上显示FPS帧数 教程当时是用手机访问的，直接显示FPS帧数，还是有点意思的。做到这个很简单直接将以下代码加到博客底部就完工了$('body').before('<div id="fps" style="z-index:10000;position:fixed;top:3;left:3;font-weight:bold;"></div>'); var showFPS = (function(){ var requestAnimationFrame = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function(callback) { window.setTimeout(callback, 1000/60); }; var e,pe,pid,fps,last,offset,step,appendFps; fps = 0; last = Date.now(); step = function(){ offset = Date.now() - last; fps += 1; if( offset >= 1000 ){ last += offset; appendFps(fps); fps = 0; } requestAnimationFrame( step ); }; appendFps = function(fps){ console.log(fps+'FPS'); $('#fps').html(fps+'FPS'); }; step(); })();注意这是JavaScript代码需要加在<script></script>标签内出现运行报错可能是本站调用了jQuery调用即可或者自己懂代码的可以
