当前位置: 首页 > 图文教程 > 网络编程 > 编程10000问 > 如何编写一个小数转换分数的函数?

编程10000问
如何编制一个产生随机密码的函数?
如何利用当前时间生成随机函数?
如何做一个密码“生成器”?
如何做一个随机密码产生器?
如何将产生的密码记录并发送给用户并通过点击链接激活?
如何取回已忘记的密码?
如何让用户也能修改密码?
如何在线更改密码?
如何计算出当前日期属于定义时间段内的第几星期?
如何验证日期输入是否正确?
如何制作一个倒计时的程序?
如何制作一个Web日程安排表?
如何在网站中插播广告?
如何拒绝同一张表单被多次提交?
不用Global.asa也能实现统计在线人数吗?
如何防范利用刷新来“作弊”的计数器?
如何防止计数器刷新计数?
如何让计数器只对新进用户计数?
如何实时获知多少人在线?
如何最准确地统计在线用户数?

编程10000问 中的 如何编写一个小数转换分数的函数?


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2010-01-10   浏览: 47 ::
收藏到网摘: n/a

Public Function XtoF(str As Currency, Optional fenm As Integer = 32) As String

' 只限于整除分数.
Dim Cfm As Currency
Dim cfmmod As Integer
On Error GoTo Erroreof
Cfm = 1 / fenm
XtoF = ""
If str = 0 Then XtoF = "": Exit Function
Dim point As Integer
Dim dInt As String
Dim dPoint As Currency
Dim fint, fint1, fint2 As Integer
If str <> 0 Then
If str > 1 Then
point = InStr(1, str, ".", 1)
If point = 0 Then
XtoF = str:
Exit Function
Else
dInt = Mid(str, 1, point - 1)
dPoint = CCur("0." & Mid(str, point + 1))
fint = InStr(1, XtoF(dPoint), "/", 1)
fint1 = CInt(Mid(XtoF(dPoint), 1, fint - 1))
fint2 = CInt(Mid(XtoF(dPoint), fint + 1))
XtoF = CStr(dInt * fint2 + fint1) & "/" & CStr(fint2)
End If
Else
If fenm Mod CInt(str / Cfm) = 0 Then
XtoF = "1/" + CStr(fenm / CInt(str / Cfm))
Else
cfmmod = Maxgys(fenm, CInt(str / Cfm))
XtoF = CStr(CInt(str / Cfm / cfmmod)) + "/" + CStr(CInt(fenm / cfmmod))
End If
End If
Else
XtoF = "0"
End If
Exit Function
Erroreof:
XtoF = ""
End Function
Function Maxgys(num1 As Integer, num2 As Integer) As Integer
Dim minnum, i As Integer
minnum = num1
If num1 > num2 Then minnum = num2
For i = 1 To minnum
If ((num1 Mod i) = 0) And ((num2 Mod i) = 0) Then Maxgys = i
Next i
End Function