一个随机取值函数，返回的是一个随机数，怎么样才能取到这个参数呢？
我需要这个参数，不知道怎么取，真正取值的话取不到，有什么解决的方法吗？
代码如下
<script language="javascript">
{
var str1=new Array(0,1,2,3,4,5,6,7,8,9,"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z")
var str2=""
for(i=0;i<=7;i++){
str2+=str1[Math.round(Math.random()*35)]
}
alert(str2)
}
</script>
怎么样取道str2这个参数，编程语言怎么写？
参考答案:搞一个隐藏的文本框：如 <input type ='hidden' name ='hidRand' id='hidRand'/>
然后
<script language="javascript">
{
var str1=new Array(0,1,2,3,4,5,6,7,8,9,"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z")
var str2=""
for(i=0;i<=7;i++){
str2+=str1[Math.round(Math.random()*35)]
}
document.all.hidRand.value = str2;
}
</script>
这样通过获取隐藏文本框的值就可以取道str2这个参数，适用於asp,asp.net,jsp等等语言中啦