public UserInfo Check(string username, string password)
{
UserInfo userInfo = new UserInfo();
//密码加密
string pw = SharedHelpers.EncodeBase64(password);
List <UserInfo> list = Queryable().ToList();
UserInfo User = list.Where(x => x.user_name == username && x.pass_word == pw).FirstOrDefault();
if (User != null)
{
userInfo = User;
}
return(userInfo);
}