代码来了
<!-- 显示FPS开始 -->
<script>
//if ((!navigator.userAgent.match(/(iPhone|iPod|Android|ios|iPad)/i))) {//匹配手机,把注释去掉就只显示PC端
$('body').before('<div id="fps" style="color:#FFB6C1;z-index:10000;position:fixed;top:3px;left:3px;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) {
$('#fps').html(fps + 'FPS');
}
;
step();
}
)();
//}//手机和电脑开启
</script>
<!-- 显示FPS结束 -->
评论 (0)