js 笔记 -- 随机生成颜色值

function  randowColor() {
var aColor = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f"];
var len = aColor.length;
var iColor = "#";
var randowIndex = 0;
while (iColor.length < 6) {
randowIndex = Math.floor(Math.random() * len);
iColor += aColor[randowIndex];
}
return iColor;
}

function randowColor() {
var iColor = "#";
while (iColor.length < 7) {
var iRandow = Math.floor(Math.random() * 256);
iRandow = iRandow.toString(16);
// 5  8
if (iRandow.length < 2) {
iRandow = "0" + iRandow;
}
iColor += iRandow;
}
return iColor;
}