let user = new LoginInfo({
"account": '13540050551',
"password": 'administrator'
}); user.save();
LoginInfo.find({"account":'13540050551'}, (err,docs) => {
if(err) console.log(err)
console.log(docs);
console.log('查询完成！')
});
LoginInfo.find({"_id" : "5d13221be9feba0dad6571f2"} , (err,docs) => {
let data = docs[0];
data.password = "administrator";
data.save();
console.log('修改完成！')
});
LoginInfo.deleteOne({ "password": "administrator" }, (err) => {
if (err) console.log(err);
console.log('删除完成！')
});