功能：系统空闲超过设定时间之后自动锁定电脑 用途：当你离开电脑时间过长的时候，系统自动锁定，保护你的隐私不外泄。-Function: system idle time exceeds the set automatically lock the computer after use: When you leave the computer for too long, the system automatically locks to protect your privacy is not c