随机数组输出

Question

<SCRIPT LANGUAGE="JavaScript">
<!--
function arZd(id,zd,zd1,zd2,zd3,zd4){
this.id=id;
this.zd=zd;
this.zdx = new Array(zd1,zd2,zd3,zd4);
}
var myzd = new Array();
myzd[0] = new arZd(1,"a","a1","a2","a3","a4");
myzd[1] = new arZd(2,"b","b1","b2","b3","b4");
myzd[2] = new arZd(3,"c","c1","c2","c3","c4");
alert("id="+myzd[0].id+"\nzd="+myzd[0].zd+"\nzdrnd="+myzd[0].zdx[Math.floor(Math.random(4)*4)]);//随机输出
alert("id="+myzd[0].id+"\nzd="+myzd[0].zd+"\nzdrnd="+myzd[0].zdx[Math.floor(Math.random(4)*4)]);
alert("id="+myzd[0].id+"\nzd="+myzd[0].zd+"\nzdrnd="+myzd[0].zdx[Math.floor(Math.random(4)*4)]);
//-->
</SCRIPT>