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如何限制软件的使用期限
比如我开发了个小软件,想给软件加个试用期(以30天为例),超过30天软件自动停止运行,并提醒用户注册付费,请各位大侠指点小弟该怎么解决 不胜感谢!!! 小弟开发的软件网址: 天空软件站: author_id=26655,华军也有,呵呵
7条回答
1、在注册表的某个地方做个标记 2、在ini的某个地方做标记 3、在硬盘某个文件中做标记 4、在背景图的位信息中写入时间信息。 不过说实在话，这些都挺容易破的，但是常用的也就这几种。 象金山词霸，就是ini文件 xiaojun58855236 2014-07-12 评价（0）（0）（1） Private Type FirstDate day As Integer month As Integer year As Integer End Type Private Sub Command1_Click() Dim times As Integer times = GetSetting("use", "soft", "times", "5") If times = 5 Then 首次使用 SaveSetting "use", "soft", "times", 10 SaveSetting "use", "soft", "date", day(Date) SaveSetting "use", "soft", "date", month(Date) SaveSetting "use", "soft", "date", year(Date) Else FirstDate.day = Int(GetSetting("use", "soft", "date", day(Date))) FirstDate.month = Int(GetSetting("use", "soft", "date", day(month))) FirstDate.year = Int(GetSetting("use", "soft", "date", day(year))) ' ....... 天數的的算法自己寫 End If End Sub xiaojun1978 2014-07-12 评价（0）（0）（0） 上次太累了，寫錯了，這次作為補嘗，幫你寫全了 Private Sub Command1_Click() Dim FirstDay As Integer Dim FirstMonth As Integer Dim NowDay As Integer Dim NowMonth As Integer Dim NowYear As Integer Dim AddDay(12) As Integer Dim times As Integer times = GetSetting("use", "soft", "times", "5") If times = 5 Then '判斷是是否首次使用 '首次使用 SaveSetting "use", "soft", "times", 10 SaveSetting "day", "use", "date", day(Date) SaveSetting "month", "use", "date", month(Date) Else FirstDay = Val(GetSetting("day", "use", "date", day(Date))) FirstMonth = Val(GetSetting("month", "use", "date", month(Date))) NowDay = day(Date) NowMonth = month(Date) AddDay(1) = 31 AddDay(2) = 28 '平年 AddDay(3) = 31 AddDay(4) = 30 AddDay(5) = 31 AddDay(6) = 30 AddDay(7) = 31 AddDay(8) = 31 AddDay(9) = 30 AddDay(10) = 31 AddDay(11) = 31 AddDay(12) = 30 If NowMonth = FirstMonth Then If (NowDay - FirstDay) >= 30 Then TheEnd Else If (NowDay + AddDay(NowMonth) - FirstDay) >= 30 Then TheEnd End If End If End Sub Sub TheEnd() MsgBox ("軟件試用以到期！") End End Sub tongxun_c 2014-07-12 评价（0）（0）（0） |
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