【JavaScript】產生隨機顏色，javascript
如果要做出如下效果，每次重新整理網頁則產生一種顏色，
其實非常簡單，產生隨機顏色的根本核心就是隨機構造出一個六位元，JavaScript的隨機數的問題
而且這個六位元的每一個數位0~f之內，因此就有了如下的方法：
1、首先是一個HTML布局，p標籤是是用來放使用中色彩的，div的背景顏色就是這個顏色
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>randomColor</title></head><body><p id="colorStr"></p><div id="div1" style="width:100px;height:100px"></div></body></html>2、之後是核心的指令碼：
<script>//顏色字串var colorStr="";//字串的每一字元的範圍var randomArr=['0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'];//產生一個六位的字串for(var i=0;i<6;i++){//15是範圍上限，0是範圍下限，兩個函數保證產生出來的隨機數是整數colorStr+=randomArr[Math.ceil(Math.random()*(15-0)+0)];}document.getElementById("colorStr").innerHTML="顏色為：#"+colorStr;document.getElementById("div1").style.backgroundColor="#"+colorStr;</script>
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