Get Statement

Đọc một bản ghi từ một tập tin tương đối, hoặc đọc một dãy byte từ một tập tin nhị phân, vào một biến.

Xem thêm: Câu lệnh PUT

Syntax:

Get Statement diagram


Get [#]fileNum, [recordNum|filePos], variable

Parameters:

fileNum: Any integer expression that determines the file number.

recordNum: For files opened in Random mode, recordNum is the number of the record that you want to read.

For files opened in Binary mode, filePos is the byte position in the file where the reading starts.

If recordNum and filePos are omitted, the current position or the current data record of the file is used.

variable: Name of the variable to be read. With the exception of object variables, you can use any variable type.

Example:


Sub ExampleRandomAccess
    Dim iNumber As Integer
    Dim vanBan As Variant REM Phải là Variant
    Dim aFile As String
    aFile = "c:\data.txt"
    iNumber = Freefile
    Open aFile For Random As #iNumber Len=32
    Seek #soNguyen,1 REM Vị trí bắt đầu
    Put #iNumber,, "This is the first line of text" REM Fill line with text
    Put #soNguyen,, "Day la dong thu hai"
    Put #soNguyen,, "Day la dong thu ba"
    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 #soNguyen,,"Day la mot doan van moi"
    Get #iNumber,1,sText
    Get #iNumber,2,sText
    Put #soNguyen,20,"Day la van ban trong ban ghi 20"
    Print Lof(#iNumber)
    Close #iNumber
End Sub

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