目录所占的字节数-VB资料

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该函数返回目录使用的字节数：

Function DirUsedBytes(ByVal dirName As String) As Long
Dim FileName As String
Dim FileSize As Currency
If Right$(dirName, 1) <> "\" Then
dirName = dirName & "\"
Endif
FileSize = 0
FileName = Dir$(dirName & "*.*")
Do While FileName <> ""
FileSize = FileSize + _
FileLen(dirName & FileName)
FileName = Dir$
Loop
DirUsedBytes = FileSize
使用：
MsgBox DirUsedBytes("C:\Windows")