<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
// var a = Math.floor(Math.random()*10+"w"+"a") ;
// // var b = Math.round(Math.random()*w+n);
// console.log(a);
function getColor() {
var str = "#";
//一个十六进制的值的数组
var arr = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"];
for (var i = 0; i < 6; i++) {
//产生的每个随机数都是一个索引,根据索引找到数组中对应的值,拼接到一起
var num = parseInt(Math.random() * 16);
str += arr[num];
}
return str;
}
console.log(getColor());
</script>
</body>
</html>