没输出啊 大神们求教
ipt type="text/javascript">
var infos[["小A","女",21,"大一"],
["小B","男",23,"大三"],["小C","男",24,"大四"],["小D","女",21,"大一"],["小E","女",22,"大四"],["小F","男",21,"大一"],["小G","女",22,"大二"],["小H","女",20,"大三"],["小I","女",20,"大一"],["小J","男",20,"大三"]];
//第一步把之前的数据写成一个数组的形式,定义变量为 infos
var i;
for(i=0;i<infos.length;i++)
//第一次筛选,找出都是大一的信息
{
if(infos[i][4]=="大一")
document.write("大一的所有信息"+infos[i][0]+"<br/>");
}
//第二次筛选,找出都是女生的信息
for(i=0;i<=infos.length;i++)
{
if(infos[i][2]=="女生")
document.write("全是女生的姓名"+infos[i][2]+"<br/>");
}