mysql_query("UPDATE users SET friends = CONCAT(friends,"$friend_id") WHERE username = '$user_logged_in'") or die mysql_error());mysql_query("UPDATE users SET friends = friends +" . ", " .
型号: public class UserModel public string Email { get; set; }} 验证器: public class UserModelValidator:AbstractValidator<UserModel> public UserModelValidator() RuleFor(x => x.Email).NotEmpty();
RuleFor(x => x.Passwo