Question

我知道我的问题与此问题类似：Hex-Value in Visual Basic

但我想问的是更多细节。我的问题是：

如何根据VB中的数据类型为变量分配十六进制值？
例如，这些是分配我知道的格式的方法：

Dim arr_ui as UInteger() = {&HABCDEF01UI, &HABCDEF01UI} '32 bit unsigned integer
Dim arr as Integer() = {&HABCDEF01, &HABCDEF01}         '32 bit signed integer
Dim arr_64 as Int64() = {&HABCDEF01&, &HABCDEF01&}      '64 bit signed integer

这样就回到了我的问题，如何分配这些咒语：
- 无符号64位整数
- 有符号和无符号16位整数
- 有符号和无符号8位整数

提前致谢

Answer 1

' unsinged 64 bit integer
Dim uLong As ULong = &H123UL

' singed and unsigned 16 bit integer
Dim uShort As UShort = &H123US
Dim sShort As Short = &H123S

' signed and unsiged 8 bit integer:
' byte and signed byte won't have a suffix in VB.NET.
Dim aByte As Byte = &H12
Dim aSByte As SByte = &H11

Answer 2

因为jmcilhinney不想要求他的功劳，答案就在这里人们https://msdn.microsoft.com/en-us/library/s9cz43ek.aspx

以下是一些例子：

Dim a As Short = &H8000S    -- 16 bit signed
Dim b As UShort = &H8000US  -- 16 bit unsigned
Dim c As Short = &H8000I    -- 32 bit signed
Dim d As UShort = &H8000UI  -- 32 bit unsigned
Dim e As Short = &H8000L    -- 64 bit signed
Dim f As UShort = &H8000UL  -- 64 bit unsigned

替代方法：

Dim g As Short = &H8000%    -- 32 bit signed
Dim h As Short = &H8000&    -- 64 bit signed

根据visual basic .net中的数据类型为变量赋值

2 个答案: