6.求最大 小值
Dim a, b, c, min As Integer
Console.Write("a=") : a = Console.ReadLine
Console.Write("b=") : b = Console.ReadLine
Console.Write("c=") : c = Console.ReadLine
If a < b Then
If a < c Then
min = a
Else
min = c
End If
Else
If b < c Then
min = b
Else
min = c
End If
End If
Console.Write("巢狀IF所得的最小者:")
Console.WriteLine(min) : Console.ReadKey()