本文主要是介绍JS原生之--圆周运动（转转转），希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
<!DOCTYPE html>
<html><head><meta charset="UTF-8"><title>四个小球椭圆运动</title><style type="text/css">.ball{border-radius:50%;}.bg{margin:80px;width:550px;height:200px;border:1px solid #ccc;background:greenyellow;}.box{position: relative;margin:34px;}</style><script>οnlοad=function(){var balls = document.getElementsByClassName("ball");for(var i =0;i<balls.length;i++){balls[i].deg = i *45; }var a = 300,b=100setInterval(function(){for(var i =0;i<balls.length;i++){balls[i].style.left = a *Math.cos(balls[i].deg *Math.PI /180) +a +"px";balls[i].style.top = b *Math.sin(balls[i].deg *Math.PI/180) +b +"px"; balls[i].deg+=2;balls[i].style.width = balls[i].style.height = balls[i].offsetTop /5 +30+"px";} },20)}</script></head><body><div class="box"><div class="ball" style="position: absolute; background: red; left:600px; top:0; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: blue; left:1200px; top:300px; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: yellow; left:600px; top:600px; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: black; left:0; top:300px; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: orange; left:0; top:300px; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: pink; left:0; top:300px; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: deepskyblue; left:0; top:300px; width: 30px; height: 30px; "></div><div class="ball" style="position: absolute; background: purple; left:0; top:300px; width: 30px; height: 30px; "></div></div><div class="bg"></div></body>
</html>
这篇关于JS原生之--圆周运动（转转转）的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！
