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很简略的一段背景色彩时刻产生变更的代码
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
#dv {width: 100px;height: 100px;}
</style>
</head>
<script>
window.onload=function(){
var oDv = document.getElementById("dv");
oDv.style.backgroundColor="red"
setInterval(function(){
var arrRandNumber = [
getRandomNumber(0,255),
getRandomNumber(0,255),
getRandomNumber(0,255)
];
oDv.style.backgroundColor="rgb("+arrRandNumber[0]+","+arrRandNumber[1]+","+arrRandNumber[2]+")"
function getRandomNumber(rMin,rMax){
var cha = rMax-rMin;
var rand = Math.random();
//return (rMin+Math.round(cha*rand))
}
},500)
//alert(getRandomNumber(0,255))
};
</script>
<body>
<div id="dv"></div>
</body>
</html>
<!doct
