送分100分:如何根据8个数字生成一个字节。 问题如下:有一个变量数组A(7) AS LONG,A(0)~A(8)的数值要么为0,要么为1,现在的要求是根据这8个数值,生成一个字节,A(0)为这个字节的最高位,A(7)为这个字节的最低位。请问如何处理。 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 Dim A(7) As Long Dim b As Byte b = A(0) * 2 ^ 7 + A(1) * 2 ^ 6 + A(2) * 2 ^ 5 + A(3) * 2 ^ 4 + A(4) * 2 ^ 3 + A(5) * 2 ^ 2 + A(6) * 2 ^ 1 + A(7) * 2 ^ 0或者用循环。 Dim A(7) As Long Dim b As Byte Dim i As Long For i = 0 To 7 b = b + A(i) * 2 ^ (7 - i) Next 如果先根据其值生成字符串,而后再将此字符串生成BYTE,能做到吗?部分代码如下: Dim B As String, b As Byte, i As Integer, td(7) As Integer, hex1 As Byte B = "" A(0) = 1 A(1) = 0 A(2) = 0 A(3) = 1 A(4) = 0 A(5) = 1 A(6) = 0 A(7) = 1 For i = 0 To 7 If A(i) = 0 Then B = B & "0" Else If (i) = 1 Then B = B & "1" End If End If Next请完善后面的代码。 Dim mByte() As Byte '字节数组Dim str As String '字符串str = "01010101"'字符串->字节数组mByte = StrConv(str, vbFromUnicode) 二,三楼的办法可能最简单了保险一点的办法这样处理,防止这个A(I)当中出现别的数字 Dim A(7) As Long Dim b As Byte Dim i As Long For i = 0 To 7 b = b + IIf(A(i)>0, 1, 0) * 2 ^ (7 - i) Next 这种脚本网页源码,IE如何模拟点击提交? 改天要和销售部同事去客户那调研,各位有什么好的建议? 如何删除文本框每行多余字符? 如何完整的读取textbox里的数值? 用Installer打包VB源码后安装出现问题! 在一个窗体代码中设置另一个窗体中的问题 datagrid的一个问题 求小写专大写金额函数思路 怎样知道中西混合文字符串在二进制文件占的真实长度?(在线等) 请版主帮忙结帐,结完请告知 PRINTER即打即停 vb 怎么没有mschart
Dim b As Byte
b = A(0) * 2 ^ 7 + A(1) * 2 ^ 6 + A(2) * 2 ^ 5 + A(3) * 2 ^ 4 + A(4) * 2 ^ 3 + A(5) * 2 ^ 2 + A(6) * 2 ^ 1 + A(7) * 2 ^ 0
或者用循环。
Dim A(7) As Long
Dim b As Byte
Dim i As Long For i = 0 To 7
b = b + A(i) * 2 ^ (7 - i)
Next
部分代码如下: Dim B As String, b As Byte, i As Integer, td(7) As Integer, hex1 As Byte
B = ""
A(0) = 1
A(1) = 0
A(2) = 0
A(3) = 1
A(4) = 0
A(5) = 1
A(6) = 0
A(7) = 1
For i = 0 To 7
If A(i) = 0 Then
B = B & "0"
Else
If (i) = 1 Then
B = B & "1"
End If
End If
Next请完善后面的代码。
Dim str As String '字符串
str = "01010101"'字符串->字节数组
mByte = StrConv(str, vbFromUnicode)
保险一点的办法这样处理,防止这个A(I)当中出现别的数字 Dim A(7) As Long
Dim b As Byte
Dim i As Long
For i = 0 To 7
b = b + IIf(A(i)>0, 1, 0) * 2 ^ (7 - i)
Next