MongoDB查询结果存放入新的Collection

var lst = db.visits_201501.find({
"url":/http:\/\/m.baidu.com\/application/
});
while(lst.hasNext())
{
db.hyyy_2015.insert(lst.next());
}

db.visits_201501.find({
$or:[{"url":{$regex:/http:\/\/(www|m).baidu.com\/netshow\/(.*)\/news(.*).htm/}},
{"url":{$regex:/http:\/\/www.baidu.com\/hot\/(.*)/}}]
}).forEach(function(x){
db.hyyy.insert(x);
})