获得 [byte []] 数组（ [byte] == System.Byte ， unsigned 8位整数类型）：

To get a [byte[]] array ([byte] == System.Byte, an unsigned 8-bit integer type):

$hexStr = 'A591BF86E5D7D9837EE7ACC569C4B59B' # sample input

[byte[]] ($hexStr -split '(.{2})' -ne '' -replace '^', '0X')

• -split'（。{2}）'用2个字符分割输入字符串序列，并用（...）括起来会导致这些序列包含在返回的令牌中； -ne''然后清除 empty 令牌（从技术上讲是实际的数据令牌）。

  • -split '(.{2})' splits the input string by 2-character sequences, and enclosure in (...) causes these sequences to be included in the returned tokens; -ne '' then weeds out the empty tokens (which are technically the actual data tokens).

    -replace，'^'，'0X'将前缀 0X 放在每个结果之前2个十六进制数字的字符串，产生数组'0XA5'，'0X91'，...

    -replace , '^', '0X' places prefix 0X before each resulting 2-hex-digit string, yielding array '0XA5', '0X91', ...

    将结果投射到 [byte []] 有助于直接识别此十六进制格式。

    casting the result to [byte[]] helpfully recognizes this hex format directly.

    
    
    • 注意：如果您忘记了转换，则会得到一个 strings 数组。
    
    
    • Note: If you forget the cast, you'll get an array of strings.

    要获取 [sbyte []] 数组（ [sbyte] == 系统.SByte ，一个 signed 8位整数），直接将投射到 [sbyte []] 代替； not 尝试组合强制转换： [sbyte []] [byte []]（...） ）

    To get an [sbyte[]] array ([sbyte] == System.SByte, a signed 8-bit integer), cast directly to [sbyte[]] instead; do not try to combine the casts: [sbyte[]] [byte[]] (...))

    如果您 已获 然后要转换为 [sbyte []] 的 [byte []] 数组> ，请使用以下方法（可能有更有效的方法）：

    If you're given a [byte[]] array that you then want to convert to [sbyte[]], use the following (there may be more efficient approaches):

    [byte[]] $bytes = 0x41, 0xFF # sample input; decimal: 65, 255
    
    # -> [sbyte] values of:  65, -1
    [sbyte[]] $sBytes = ($bytes.ForEach('ToString', 'X') -replace '^', '0X')
    

    应用于样本值，以十进制表示：

    Applied to your sample values, in decimal notation:

    # Input array of [byte]s.
    [byte[]] $bytes = 43, 240, 82, 109, 185, 46, 111, 8, 164, 74, 164, 172
    # Convert to an [sbyte] array.
    [sbyte[]] $sBytes = ($bytes.ForEach('ToString', 'X') -replace '^', '0X')
    $sBytes # Output (each signed byte prints on its own line, in decimal form).
    

    输出：

    43
    -16
    82
    109
    -71
    46
    111
    8
    -92
    74
    -92
    -84