UNIX操作系统大多安装在网络服务器上，为了避免维护人员不在时无关人员对服务器进行误操作，我用C语言编写了一个小程序实现了屏幕锁的功能，该程序在AT&T UNIX 4.0和SCO UNIX 5.0上均运行通过-UNIX operating systems are often installed on a network server, to avoid maintenance personnel unrelated to the absence of staff on the server er