如何在Write-Host中为颜色使用十六进制代码？

Question

在Write-Host中，您可以将前景颜色设置为

Write-Host "test" -ForegroundColor Green

你会使用十六进制代码吗？喜欢

Write-Host "test" -ForegroundColor FFFFFF

如果我希望前景色是未列出的颜色

[System.Enum]::GetValues([System.ConsoleColor])

我做什么好？

Answer 1

我想你可以使用像psreadline这样的转义代码。运行"get-psreadlineoptions“来查看其中的一些。该命令的文档具有指向代码的链接。https://en.wikipedia.org/wiki/ANSI_escape_code#Colors_在Powershell7中，您可以使用“e”进行转义。

write-host "$([char]0x1b)[91mhi"

hi  # appears red


Command            "$([char]0x1b)[31m" red # 93 bright yellow
Comment            "$([char]0x1b)[32m" green
ContinuationPrompt "$([char]0x1b)[37m" white # 33 yellow
DefaultToken       "$([char]0x1b)[37m" white
Emphasis           "$([char]0x1b)[96m" bright cyan
Error              "$([char]0x1b)[91m" bright red
Keyword            "$([char]0x1b)[92m" bright green
Member             "$([char]0x1b)[97m" bright white
Number             "$([char]0x1b)[97m" bright white
Operator           "$([char]0x1b)[90m" bright black
Parameter          "$([char]0x1b)[90m" bright black
Selection          "$([char]0x1b)[30;47m" black on white # 35;43 magenta;yellow
String             "$([char]0x1b)[36m" cyan
Type               "$([char]0x1b)[37m" white
Variable           "$([char]0x1b)[92m" bright green

有一个叫做Pansies的模块可以做到这一点。它会安装一个新的写主机。它也支持xterm颜色，DodgerBlue等...

Answer 2

另一种选择是创建十六进制代码和控制台颜色名称的哈希表映射，并使用：

$colorMap = [ordered]@{
    '000000' = 'Black'
    '140E88' = 'DarkBlue'
    '00640A' = 'DarkGreen'
    '008B87' = 'DarkCyan'
    '8B0000' = 'DarkRed'
    '820087' = 'DarkMagenta'
    'AAAA00' = 'DarkYellow'
    'A9A9A9' = 'Gray'
    '808080' = 'DarkGray'
    '0000FF' = 'Blue'
    '00FF00' = 'Green'
    '00FFFF' = 'Cyan'
    'FF0000' = 'Red'
    'FF00FF' = 'Magenta'
    'FFFF00' = 'Yellow'
    'FFFFFF' = 'White'
}

foreach($colorCode in $colorMap.Keys) {
    Write-Host "Testing color $colorCode" -ForegroundColor $colorMap[$colorCode]
}

当然，使用这种方法只能使用$colorMap包含的十六进制代码作为键，否则会抛出异常