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VB.Net自带函数：
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十进制转八进制：Oct(num)
十六进制转八进制：oct("H" num)
十进制转十六进制：hex(num)
八进制转十六进制：hex("O" num)
十六进制转换为十进制：CLng("H" num)
Option Explicit
Dim Jz As Integer, K As Boolean
Private Sub Command1_Click()
Pic.Cls
If K Then Jz = Val(Qtjz.Text)
If Pd(Text1.Text, Jz) Then Pic.Print "选择的进制与数不符": Exit Sub
If Jz = 0 Then Pic.Print "请先输入进制" Else Pic.Print Zh(Text1.Text, Jz)
End Sub
Private Sub Command2_Click()
End
End Sub
Private Sub Frame1_DragDrop(Source As Control, X As Single, Y As Single)
End Sub
Private Sub Option1_Click(Index As Integer)
K = False
Select Case Index
Case 0
Jz = 2
Case 1
Jz = 8
Case 2
Jz = 10
Case 3
Jz = 16
Case 4
K = True
Qtjz.Text = ""
Qtjz.SetFocus
End Select
If Index 4 Then Command1.SetFocus
End Sub
Private Sub Qtjz_Click()
Qtjz.Text = ""
End Sub
Private Sub Text1_Click()
Text1.Text = ""
End Sub
Private Function Zh(a As String, b As Integer) As Integer
Dim c As String, i, d As Integer
a = LCase(a)
For i = 1 To Len(a)
c = Mid(a, Len(a) + 1 - i, 1)
If Asc(c) 96 Then d = Asc(c) - 87 Else d = Val(c)
Zh = Zh + d * b ^ (i - 1)
Next i
End Function
Private Function Pd(a As String, b As Integer) As Boolean
Dim c As String, i, d As Integer
Pd = False
For i = 1 To Len(a)
c = Mid(a, Len(a) + 1 - i, 1)
If Asc(c) 96 Then d = Asc(c) - 87 Else d = Val(c)
If d b - 1 Then Pd = True: Exit Function
Next i
End Function
分类: 电脑/网络 程序设计 其他编程语言
问题描述:
我是这么遍的，但是最后一个输出是0,高手看一下是怎么回事
Module Module1
Sub Main()
Dim b, w, i, sum As Integer
Dim a As Long
Console.WriteLine("请输入一个二进制数")
a = Console.ReadLine()
Console.WriteLine("请输入这个二进制数的位数")
w = Console.ReadLine()
b = w
sum = 0
For i = b To 0
If a - (1 * 10 ^ b) = 0 Then
sum = sum + 1 * 10 ^ b
a = a - (1 * 10 ^ b)
b = b - 1
End If
Next
Console.WriteLine(sum)
Console.ReadLine()
End Sub
End Module
解析:
.NET 程序写成你这样也算厉害了，好好看看下面的代码
Sub Main()
Console.WriteLine("请输入一个二进制数")
Console.WriteLine(bin2int(Console.ReadLine()))
Console.ReadKey()
End Sub
Function bin2int(ByVal bin As String) As Integer
Dim i As Long
For i = 1 To bin.Length
bin2int = bin2int * 2 + Val(Mid(bin, i, 1))
Next i
End Function
通过and判断
a: 00000100 a: 00000010
and b: 00000010 and b: 00000110
00000000 00000010
结果： 假 真
Qbasic代码（Basic代码是怎样的，我忘记了，很少用，你修改一下，应该可以再VB。NET运行）：
a=4 '将二进制转换为十进制
b=2
c=6
if a and b then
print "a,b有同一个1"
else
print "a,b无同一个1"
end if
if b and c then
print "b,c有同一个1"
else
print "b,c无同一个1"
end if
end '不喜欢end就却掉吧