下面的程式是将使用者的留言资讯加到 guestbook 留言资料表中。若要设定使用者认证功能，可在程式刚开始时检查，发留言者就可以确认身份，而读取留言就不必身份检查。这种设定可以防止不当发言，却又不会让留言功能只有少数人使用。-The following programs are added to the user s message guestbook message information data sheet. To set the user authentication function, you can check at the beginning of the program, who can send a message to confirm the identity, and read the message do not have identity checks. This setting prevents incorrect statement, but will not let voicemail only a few people.