ການຊ່ວຍເຫຼືອ LibreOffice 26.2
ສົ່ງຄືນຂະໜາດຂອງໄຟລ໌ທີ່ເປີດຢູ່ເປັນຫົວໜ່ວຍໄບຕ໌.
Lof (FileNumber) As Long
Long
FileNumber: ນິພົດຕົວເລກໃດໜຶ່ງທີ່ປະກອບມີໝາຍເລກໄຟລ໌ທີ່ລະບຸໄວ້ໃນຄຳສັ່ງ Open.
ເພື່ອຫາຄວາມຍາວຂອງໄຟລ໌ທີ່ບໍ່ໄດ້ເປີດຢູ່, ໃຫ້ໃຊ້ຟັງຊັນ FileLen.
5 ການເອີ້ນໃຊ້ໂປຣຊີເຈີບໍ່ຖືກຕ້ອງ
52 ຊື່ໄຟລ໌ ຫຼື ເລກໄຟລ໌ບໍ່ຖືກຕ້ອງ
Sub ExampleRandomAccess
Dim iNumber As Integer
Dim sText As Variant ' ຕ້ອງເປັນແບບ variant
Dim aFile As String
aFile = "C:\Users\ThisUser\data.txt"
iNumber = Freefile
Open aFile For Random As #iNumber Len=32
Seek #iNumber,1 ' ໄປທີ່ຕຳແໜ່ງເລີ່ມຕົ້ນ
Put #iNumber, , "This is the first line of text" ' ຂຽນຂໍ້ຄວາມລົງໃນແຖວ
Put #iNumber, , "This is the second line of text"
Put #iNumber, , "This is the third line of text"
Seek #iNumber,2
Get #iNumber, , sText
Print sText
Close #iNumber
iNumber = Freefile
Open aFile For Random As #iNumber Len=32
Get #iNumber, 2, sText
Put #iNumber, , "This is a new text"
Get #iNumber, 1, sText
Get #iNumber, 2, sText
Put #iNumber, 20, "This is the text in record 20"
Print Lof(#iNumber)
Close #iNumber
End Sub
Sub ExampleRandomAccess
Dim iNumber As Integer
Dim sText As Variant ' ຕ້ອງເປັນແບບ variant
Dim aFile As String
aFile = "~/data.txt"
iNumber = Freefile
Open aFile For Random As #iNumber Len=32
Seek #iNumber,1 ' ໄປທີ່ຕຳແໜ່ງເລີ່ມຕົ້ນ
Put #iNumber, , "This is the first line of text" ' ຂຽນຂໍ້ຄວາມລົງໃນແຖວ
Put #iNumber, , "This is the second line of text"
Put #iNumber, , "This is the third line of text"
Seek #iNumber,2
Get #iNumber, , sText
Print sText
Close #iNumber
iNumber = Freefile
Open aFile For Random As #iNumber Len=32
Get #iNumber, 2, sText
Put #iNumber, , "This is a new text"
Get #iNumber, 1, sText
Get #iNumber, 2, sText
Put #iNumber, 20, "This is the text in record 20"
Print Lof(#iNumber)
Close #iNumber
End Sub
