分享我的代码
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'
]
for (var i = 0; i < infos.length; i++) {
if (infos[i][3]=='大一'&&infos[i][1]=="女") {
document.write(infos[i]+'<br>');
}
}