随机顺序输出我指定的几个字符串`该如何实现？

Question

<script language="javascript">
var arr = new Array("123","好","asdad","不好","你好","我好");  
index=Math.round(Math.random()*arr.length-1);
alert(arr[index]);
</script>

Answer 1

<script language="javascript">
Array.prototype.Random = function(){
for(var i=0;i<this.length;i++){
var index = Math.floor(Math.random()*(this.length));
var temp  = this[i];
this[i] = this[index];
this[index] = temp; }
return this;
}
var arr = new Array("123","好","asdad","不好","你好","我好");
alert(arr.Random());
</script>