<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
</body>
<script>
window.onload = function() {
var arr = ["009", "002", "006", "003", "001", "005"];
var index = Math.floor((Math.random()*arr.length));
console.log(arr[index]);
}
</script>
</html>
mounted(){
var count = this.commodity.length;
while (this.original.length < 3) {
var num = Math.floor(Math.random() * count);
if (this.original.indexOf(num) == -1) {
this.original.push(this.commodity[num])
}
}
},
