99-1

'1.將輸入之秒數轉換成「時:分:秒」。如輸入 10000，則輸出 02:46:40

Public Class Form1
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim t = 10000
        Dim sec = t Mod 60
        Dim minute = t \ 60 Mod 60
        Dim hour = t \ 3600
        MsgBox(hour & "：" & minute & "：" & sec)
    End Sub
End Class