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技术板块灌水区
» 请教软件试用版天数
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Subject: 请教软件试用版天数
angjq
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UID 41766
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Registered 2009-2-12
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#1
Post at 2009-11-25 12:40
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P.M.
请教软件试用版天数
我在开发一个软件,客户要求先给一个试用版,要求三天的试用期,按照传统的方式好像不行,是只要客户改系统时间
就可以想用到什么时候就用到什么时候,所以想问一下如何实现?想请各位高手帮帮忙,有点急。
bahamut8348
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#2
Post at 2009-11-25 12:45
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同步网络时间。
OVER
做人要厚道,看帖要回贴
angjq
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UID 41766
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#3
Post at 2009-11-25 18:47
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我开发的单机版的系统(C\S版本),如果不能上网了?
希望能够详细一点。
Passion
(LiuXiao)
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#4
Post at 2009-11-25 20:24
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运行时保存当前时间,下回启动时发现时间变早了就表示用户改时间了。
angjq
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UID 41766
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#5
Post at 2009-11-26 19:26
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谢谢bahamut8348 、Passion (LiuXiao)
回帖,但是我有一个疑问,如果所改的时间在我限制的时间内,我怎么去判断呢?
agully
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#6
Post at 2010-8-27 16:55
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如果用户修改了系统时间,你可以用一个变量保存到数据库或者注册表,如果限定这个变量的值大于几就强制关闭系统
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