FileSystemObject判斷盤符、檔案夾、檔案是否存在，filesystemobject
DriveExists(盤符)
檢查一個盤是否存在
FileExists(檔案名稱)
檢查一個檔案是否存在
FolderExists(目錄名)
檢查一個檔案夾是否存在
例：
<HTML> <HEAD> <TITLE> filesystemobject </TITLE> <script type="text/javascript"> var fso = new ActiveXObject("Scripting.FileSystemObject"); hasDriveD = fso.DriveExists("d"); //檢查系統是否有D盤存在 hasDriveZ = fso.DriveExists("z"); //檢查系統是否有Z盤存在 if (hasDriveD){ alert("你的系統內有一個D盤"); } if (!hasDriveZ){ alert("你的系統內沒有Z盤"); } var fileName = fso.FileExists("c:\\boat.txt"); if (fileName){ alert("你在C盤中有boat.txt檔案"); } var folderName = fso.FolderExists("c:\\Windows\\System32"); if (folderName){ alert("存在System32檔案夾！"); } </script> </HEAD> <BODY> </BODY></HTML>
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