VB写的一个简单挂机锁程序！可以在自己电脑没有设密码且暂离不想关机时候使用，防止其他人对电脑操作！利用了文件读写和注册表操作！把用户设置密码进行保存并把程序加入自动启动（注册表操作），防止其他人强行关机绕过此程序！如果在没有正常退出程序单情况下（例如：强行关机等），下次重启就会自动运行并锁屏（密码与上次相同）。 -Write a simple VB program hook lock! In their own password and temporarily leaving the computer does not shut down when not used, to prevent others from computer! Use of the file and registry operations to read and write! Set a password for the user to save and add the program starts automatically (registry operation), to prevent others from forced shutdown bypass this program! If you exit the program without a single normal circumstances (for example: the forced shutdown, etc.), it will automatically run the next restart and lock screen (the same as the previous password).