VB程序設計教程(第四版)龔沛曾-實驗8-1

實驗8-1

編寫如圖2.8.1所示的應用程度。若單擊“建立文件”按鈕，則分別用Print#和和Write#語句將三個同學的學號、姓名和成績寫入Score.dat和Score1.dat；若單擊“讀取文件”按鈕，則用line Input 語句按行將兩個（當前目錄）文件中的數據顯示在相應的文本框。
其中：學號和姓名是字符串類型，成績是整型。

解題，畫2個按鈕，2個文本框（2個文本框的 MultiLine 屬性設置爲 True），代碼如下：
Private Sub Command1_Click()
    Open "c:\score" For Output As #1
    Print #1, "051023", "王海濤", 66
    Print #1, "052498", "周文英", 88
    Print #1, "050992", "陳建東", 77

    Open "c:\score1" For Output As #2
    Write #2, "051023", "王海濤", 66
    Write #2, "052498", "周文英", 88
    Write #2, "050992", "陳建東", 77

    Close
End Sub

Private Sub Command2_Click()
    Text1.Text = ""
    Text2.Text = ""

    Dim no As String, name As String, s As Integer
    Open "c:\score" For Input As #1
    Do While Not EOF(1)
        Line Input #1, linedata
        Text1.Text = Text1.Text & linedata & Chr(13) & Chr(10)
    Loop

    Open "c:\score1" For Input As #2
    Do While Not EOF(2)
        Line Input #2, linedata
        Text2.Text = Text2.Text & linedata & Chr(13) & Chr(10)
    Loop

    Close
End Sub