数组随机取值

function load(minnum,maxnum){
var choice = maxnum - minnum +1;
var a = Math.floor(Math.random()*choice + minnum);
return a;
}
var groups = ['0','1','2','3','4'];
var b = groups[load(0,groups.length -1)];
alert(b);
posted @ 2011-05-09 11:37  Reibin  阅读(1010)  评论(0编辑  收藏  举报

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