该锁屏软件有以下功能:实现锁屏,背景图片修改,预览,密码修改,密码忘记功能,屏蔽一些系统功能键.密码采用MD5加密很安全.-The lock screen software has the following features: realization of the lock screen, the background picture changes, preview, password change, password forget function, shielding some of t