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Public Function Round2(ByVal num As Double, Optional ByVal digit As Long = 0) As Double
'°ú¿ô¡§
'   num¡§»Í¼Î¸ÞÆþ¤¹¤ë¿ôÃÍ
'   digit¡§»Í¼Î¸ÞÆþ¤¹¤ë¾®¿ôÅÀ(¾Êά²Ä)
'ÌáÃÍ¡§
'   num¤ò»Í¼Î¸ÞÆþ¤·¤¿ÃÍ

    Dim tmpNum As Double
    
    tmpNum = num * 10 ^ digit
    
    If tmpNum > 0 Then
        Round2 = Fix(tmpNum + 0.5) / 10 ^ digit
    ElseIf tmpNum < 0 Then
        Round2 = -Fix(-tmpNum + 0.5) / 10 ^ digit
    End If
    
    Exit Function

End Function

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Public Function dirExist(ByVal dirPath As String) As Boolean
'°ú¿ô¡§
'   dirPath¡§¥Õ¥©¥ë¥À¤Î¥Õ¥ë¥Ñ¥¹
'ÌáÃÍ¡§
'  »ØÄê¥Ñ¥¹¤¬¥Õ¥©¥ë¥À¤Ê¤éTrue
'  ¥Õ¥¡¥¤¥ë¤ä¸ºß¤·¤Ê¤¤¥Ñ¥¹¤Ê¤é¤ÐFalse¤òÊÖ¤¹

On Error GoTo func_err
    
    If GetAttr(dirpath) = vbDirectory Then
    	isDirExist = True
    Else
    	isDirExist = False
    End If

    Exit Function
func_err:
    isDirExist = False
End Function

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If Not db IS Nothing Then
     db.Close()
     Set db = Nothing
End IF

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Public Function CloseDB(ByRef vDB As Object) As Boolean
'°ú¿ô¡§
'   vDB¡§¥¯¥í¡¼¥º¤¹¤ë¥ª¥Ö¥¸¥§¥¯¥È
'ÌáÃÍ¡§
'   ¥¯¥í¡¼¥º½èÍý¤ÎÀ®ÈÝ(true/false)
On Erro GoTo func_err
    
    If Not vDB Is Nothing Then
        vDB.Close
        Set vDB = Nothing
    End If
    
    CloseDB = True
    Exit Function
func_err:
    CloseDB = False
End Function

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Public Function arryElmntCnt(ByRef vArray As Variant, _
                             Optional ByVal dimensionNo As Long = 1) As Long
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'     vArray¡§ÇÛÎó
'     dimensionNo¡§¼¡¸µ¥¤¥ó¥Ç¥Ã¥¯¥¹(¾Êά²Ä)
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    If IsArray(vArray) And dimensionNo > 0 Then
        'ÇÛÎó¤Ç¤¢¤ê¡¢³¬Áؤ¬1°Ê¾å¤Î¾ì¹ç
        arryElmntCnt = UBound(vArray, dimensionNo) + 1
    Else
        GoTo user_err
    End If

    Exit Function
func_err:
    'Í×ÁǤ¬¤Ê¤¤¾ì¹ç
    arryElmntCnt = 0
    Exit Function
user_err:
    '°ú¿ô¤¬ÉÔÀµÃͤξì¹ç
    arryElmntCnt = -1
End Function

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'°ú¿ô¡§
'   filePath¡§¥Õ¥¡¥¤¥ë¥Ñ¥¹
'ÌáÃÍ¡§
'  ¥Õ¥¡¥¤¥ë¤¬Â¸ºß¤¹¤ì¤ÐTrue
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    Dim n As Integer
On Error GoTo func_err
    
    n = FreeFile
    Open filePath For Input As #n    '¥Õ¥¡¥¤¥ë¤¬³«¤±¤ì¤Ð¸ºß¤¹¤ë¤ÈȽÃÇ
    Close #n
    
    isFileExist = True
    Exit Function
func_err:
    isFileExist = False
End Function

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