[填空题] 下列程序的功能是把文件C:a1.txt复制成C:a2.txt,请填空。 Private Sub Form C1ick()Dim ch As StringOpen "C:a1.tx
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[填空题] 下列程序的功能是把文件C:a1.txt复制成C:a2.txt,请填空。 Private Sub Form C1ick()Dim ch As StringOpen "C:a1.txt" For 【13】 Open "C:a2.txt" For 【14】 Do While Not 【15】 ch=Input(1,10) Print #20,ch;LoopClose #10,#20 End Sub
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