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dos huan jing bian liang de miao yong
Author(s): 
Pages: 40
Year: Issue:  3
Journal: Family Electronics

Keyword:  环境变量当前目录驱动器命令应用软件系统路径空字符控制相自动批处理文件识别符;
Abstract: <正> 在长期实践中,笔者发现DOS的环境变量,除了能用于控制相应的操作,如:PATH、PROMPT、SHELL、DIR外,还能弥补某些软件自身功能的不足,下面举例加以说明。1.加密DIR命令在执行SET DIRCMD=0命令时,将Directory变量设置成一个空字符,用DIR命令显示当前目录内容的唯一方法是输入完整的驱动器路径识别符,否则将显示“File notfound”信息,解密时只需执行SET
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