是否有一种聪明/棘手的方法来分析字符串表示的IP地址是否有效,并识别其版本,以便仅通过使用UNIX就可以将其转换为适当的结构?in_addr addr;// try to convert from standard numbers-and-dots notation into binary data{
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Dim sbl As ListObject: Set sbl = ActiveWorkbook.Sheets(4).ListObjects("Tab_1") 'source table
MsgBox Application.WorksheetFunction.SumIfs(sbl.ListColumns(2).DataBodyRange, <em