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Question

我试过搜索但只发现一篇文章描述了我用来解析JSON的相同方法，所以想知道是否有更好的方法来做到这一点。

我编写了一个小函数来生成随机passowrd并使用Json ACII表来定义哪些字符将成为密码的一部分，我选择了这种方法，因为我想打印拼写密码。

我现在所拥有的是：

[string]$asciiJson = @"
[
    {"Index": "1","Number": "33","AsciiCode": "!","Phonetic": "Exclamation point","Type": "Symbol"},
    {"Index": "2","Number": "34","AsciiCode": "\"","Phonetic":"Double quotes","Type": "Symbol"},
    {"Index": "3","Number": "35","AsciiCode": "#","Phonetic": "Hash sign","Type": "Symbol"},
    {"Index": "4","Number": "36","AsciiCode": "$","Phonetic": "Dollar sign","Type": "Symbol"},
    {"Index": "5","Number": "37","AsciiCode": "%","Phonetic": "Percent sign","Type": "Symbol"},
    {"Index": "6","Number": "38","AsciiCode": "&","Phonetic": "Ampersand","Type": "Symbol"},
    {"Index": "7","Number": "39","AsciiCode": "'","Phonetic": "Single quote","Type": "Symbol"},
    {"Index": "8","Number": "40","AsciiCode": "(","Phonetic": "Opening parenthesis","Type": "Symbol"},
    {"Index": "9","Number": "41","AsciiCode": ")","Phonetic": "Closing parenthesis","Type": "Symbol"},
    {"Index": "10","Number": "42","AsciiCode": "*","Phonetic": "Asterisk","Type": "Symbol"},
    {"Index": "11","Number": "43","AsciiCode": "+","Phonetic": "Plus sign","Type": "Symbol"},
    {"Index": "12","Number": "44","AsciiCode": ",","Phonetic": "Comma","Type": "Symbol"},
    {"Index": "13","Number": "45","AsciiCode": "-","Phonetic": "Minus sign -Hyphen","Type": "Symbol"},
    {"Index": "14","Number": "46","AsciiCode": ".","Phonetic": "Period","Type": "Symbol"},
    {"Index": "15","Number": "47","AsciiCode": "/","Phonetic": "Slash","Type": "Symbol"},
    {"Index": "16","Number": "58","AsciiCode": ":","Phonetic": "Colon","Type": "Symbol"},
    {"Index": "17","Number": "59","AsciiCode": ";","Phonetic": "SemiColon","Type": "Symbol"},
    {"Index": "18","Number": "60","AsciiCode": "<","Phonetic": "Less than sign","Type": "Symbol"},
    {"Index": "19","Number": "61","AsciiCode": "=","Phonetic": "Equal sign","Type": "Symbol"},
    {"Index": "20","Number": "62","AsciiCode": ">","Phonetic": "Greater than sign","Type": "Symbol"},
    {"Index": "21","Number": "63","AsciiCode": "?","Phonetic": "Question mark","Type": "Symbol"},
    {"Index": "22","Number": "64","AsciiCode": "@","Phonetic": "At symbol","Type": "Symbol"},
    {"Index": "23","Number": "91","AsciiCode": "[","Phonetic": "Opening bracket","Type": "Symbol"},
    {"Index": "24","Number": "92","AsciiCode": "\\","Phonetic": "Backslash","Type": "Symbol"},
    {"Index": "25","Number": "93","AsciiCode": "]","Phonetic": "Closing bracket","Type": "Symbol"},
    {"Index": "26","Number": "94","AsciiCode": "^","Phonetic": "Caret - circumflex","Type": "Symbol"},
    {"Index": "27","Number": "95","AsciiCode": "_","Phonetic": "Underscore","Type": "Symbol"},
    {"Index": "29","Number": "123","AsciiCode": "{","Phonetic": "Opening brace","Type": "Symbol"},
    {"Index": "30","Number": "124","AsciiCode": "|","Phonetic": "Vertical bar","Type": "Symbol"},
    {"Index": "31","Number": "125","AsciiCode": "}","Phonetic": "Closing brace","Type": "Symbol"},
    {"Index": "33","Number": "65","AsciiCode": "A","Phonetic": "Alpha ","Type": "Capital Letter"},
    {"Index": "34","Number": "66","AsciiCode": "B","Phonetic": "Bravo ","Type": "Capital Letter"},
    {"Index": "35","Number": "67","AsciiCode": "C","Phonetic": "Charlie ","Type": "Capital Letter"},
    {"Index": "36","Number": "68","AsciiCode": "D","Phonetic": "Delta ","Type": "Capital Letter"},
    {"Index": "37","Number": "69","AsciiCode": "E","Phonetic": "Echo ","Type": "Capital Letter"},
    {"Index": "38","Number": "70","AsciiCode": "F","Phonetic": "Foxtrot ","Type": "Capital Letter"},
    {"Index": "39","Number": "71","AsciiCode": "G","Phonetic": "Golf ","Type": "Capital Letter"},
    {"Index": "40","Number": "72","AsciiCode": "H","Phonetic": "Hotel ","Type": "Capital Letter"},
    {"Index": "41","Number": "73","AsciiCode": "I","Phonetic": "India ","Type": "Capital Letter"},
    {"Index": "42","Number": "74","AsciiCode": "J","Phonetic": "Juliet ","Type": "Capital Letter"},
    {"Index": "43","Number": "75","AsciiCode": "K","Phonetic": "Kilo ","Type": "Capital Letter"},
    {"Index": "44","Number": "76","AsciiCode": "L","Phonetic": "Lima ","Type": "Capital Letter"},
    {"Index": "45","Number": "77","AsciiCode": "M","Phonetic": "Mike ","Type": "Capital Letter"},
    {"Index": "46","Number": "78","AsciiCode": "N","Phonetic": "November ","Type": "Capital Letter"},
    {"Index": "47","Number": "79","AsciiCode": "O","Phonetic": "Oscar ","Type": "Capital Letter"},
    {"Index": "48","Number": "80","AsciiCode": "P","Phonetic": "Papa ","Type": "Capital Letter"},
    {"Index": "49","Number": "81","AsciiCode": "Q","Phonetic": "Quebec ","Type": "Capital Letter"},
    {"Index": "50","Number": "82","AsciiCode": "R","Phonetic": "Romeo ","Type": "Capital Letter"},
    {"Index": "51","Number": "83","AsciiCode": "S","Phonetic": "Sierra ","Type": "Capital Letter"},
    {"Index": "52","Number": "84","AsciiCode": "T","Phonetic": "Tango ","Type": "Capital Letter"},
    {"Index": "53","Number": "85","AsciiCode": "U","Phonetic": "Uniform ","Type": "Capital Letter"},
    {"Index": "54","Number": "86","AsciiCode": "V","Phonetic": "Victor ","Type": "Capital Letter"},
    {"Index": "55","Number": "87","AsciiCode": "W","Phonetic": "Whiskey ","Type": "Capital Letter"},
    {"Index": "56","Number": "88","AsciiCode": "X","Phonetic": "X-Ray ","Type": "Capital Letter"},
    {"Index": "57","Number": "89","AsciiCode": "Y","Phonetic": "Yankee ","Type": "Capital Letter"},
    {"Index": "58","Number": "90","AsciiCode": "Z","Phonetic": "Zulu ","Type": "Capital Letter"},
    {"Index": "59","Number": "97","AsciiCode": "a","Phonetic": "Alpha ","Type": "Lowercase Letter"},
    {"Index": "60","Number": "98","AsciiCode": "b","Phonetic": "Bravo ","Type": "Lowercase Letter"},
    {"Index": "61","Number": "99","AsciiCode": "c","Phonetic": "Charlie ","Type": "Lowercase Letter"},
    {"Index": "62","Number": "100","AsciiCode": "d","Phonetic": "Delta ","Type": "Lowercase Letter"},
    {"Index": "63","Number": "101","AsciiCode": "e","Phonetic": "Echo ","Type": "Lowercase Letter"},
    {"Index": "64","Number": "102","AsciiCode": "f","Phonetic": "Foxtrot ","Type": "Lowercase Letter"},
    {"Index": "65","Number": "103","AsciiCode": "g","Phonetic": "Golf ","Type": "Lowercase Letter"},
    {"Index": "66","Number": "104","AsciiCode": "h","Phonetic": "Hotel ","Type": "Lowercase Letter"},
    {"Index": "67","Number": "105","AsciiCode": "i","Phonetic": "India ","Type": "Lowercase Letter"},
    {"Index": "68","Number": "106","AsciiCode": "j","Phonetic": "Juliet ","Type": "Lowercase Letter"},
    {"Index": "69","Number": "107","AsciiCode": "k","Phonetic": "Kilo ","Type": "Lowercase Letter"},
    {"Index": "70","Number": "108","AsciiCode": "l","Phonetic": "Lima ","Type": "Lowercase Letter"},
    {"Index": "71","Number": "109","AsciiCode": "m","Phonetic": "Mike ","Type": "Lowercase Letter"},
    {"Index": "72","Number": "110","AsciiCode": "n","Phonetic": "November ","Type": "Lowercase Letter"},
    {"Index": "73","Number": "111","AsciiCode": "o","Phonetic": "Oscar ","Type": "Lowercase Letter"},
    {"Index": "74","Number": "112","AsciiCode": "p","Phonetic": "Papa ","Type": "Lowercase Letter"},
    {"Index": "75","Number": "113","AsciiCode": "q","Phonetic": "Quebec ","Type": "Lowercase Letter"},
    {"Index": "76","Number": "114","AsciiCode": "r","Phonetic": "Romeo ","Type": "Lowercase Letter"},
    {"Index": "77","Number": "115","AsciiCode": "s","Phonetic": "Sierra ","Type": "Lowercase Letter"},
    {"Index": "78","Number": "116","AsciiCode": "t","Phonetic": "Tango ","Type": "Lowercase Letter"},
    {"Index": "79","Number": "117","AsciiCode": "u","Phonetic": "Uniform ","Type": "Lowercase Letter"},
    {"Index": "80","Number": "118","AsciiCode": "v","Phonetic": "Victor ","Type": "Lowercase Letter"},
    {"Index": "81","Number": "119","AsciiCode": "w","Phonetic": "Whiskey ","Type": "Lowercase Letter"},
    {"Index": "82","Number": "120","AsciiCode": "x","Phonetic": "X-Ray ","Type": "Lowercase Letter"},
    {"Index": "83","Number": "121","AsciiCode": "y","Phonetic": "Yankee ","Type": "Lowercase Letter"},
    {"Index": "84","Number": "122","AsciiCode": "z","Phonetic": "Zulu ","Type": "Lowercase Letter"},
    {"Index": "85","Number": "48","AsciiCode": "0","Phonetic": "Zero","Type": "Number"},
    {"Index": "86","Number": "49","AsciiCode": "1","Phonetic": "One","Type": "Number"},
    {"Index": "87","Number": "50","AsciiCode": "2","Phonetic": "Two","Type": "Number"},
    {"Index": "88","Number": "51","AsciiCode": "3","Phonetic": "Three","Type": "Number"},
    {"Index": "89","Number": "52","AsciiCode": "4","Phonetic": "Four","Type": "Number"},
    {"Index": "90","Number": "53","AsciiCode": "5","Phonetic": "Five","Type": "Number"},
    {"Index": "91","Number": "54","AsciiCode": "6","Phonetic": "Six","Type": "Number"},
    {"Index": "92","Number": "55","AsciiCode": "7","Phonetic": "Seven","Type": "Number"},
    {"Index": "93","Number": "56","AsciiCode": "8","Phonetic": "Eight","Type": "Number"},
    {"Index": "94","Number": "57","AsciiCode": "9","Phonetic": "Nine","Type": "Number"}
]
"@

这是我生成各种字符表

的部分

        # Generate characters tables
    $charsTable = ConvertFrom-Json -InputObject $asciiJson
    $symbolsTable = $charsTable | Where-Object { $_.Type -eq 'Symbol' }
    $capitalLettersTable = $charsTable | Where-Object { $_.Type -eq 'Capital Letter' }
    $lowerCaseLettersTable = $charsTable | Where-Object { $_.Type -eq 'Lowercase Letter' }
    $digitsTable = $charsTable | Where-Object { $_.Type -eq 'Number' }

所有工作都很好地注意到从achild脚本调用函数时解析部分相当慢，所以我想知道是否有更好的方法来填充各种字符表。

我承认我对JSON比较陌生，所以如果有更好的方法可以做到这一点，我会非常高兴听到它。

总而言之，我可以使用性能命中，但如果有办法优化代码，为什么不能。

提前感谢您提供任何帮助/反馈。

Answer 1

为什么要使用JSON（JavaScript）而不是以PowerShell Object Notation (PSON)格式保留？

您可以使用ConvertTo-Expression cmdlet：

轻松将其转换为PowerShell表达式

PS C:\> $asciiJson | ConvertFrom-Json | ConvertTo-Expression -Expand 1
@(
        [PSCustomObject]@{'AsciiCode' = '!'; 'Index' = '1'; 'Number' = '33'; 'Phonetic' = 'Exclamation point'; 'Type' = 'Symbol'},
        [PSCustomObject]@{'AsciiCode' = '"'; 'Index' = '2'; 'Number' = '34'; 'Phonetic' = 'Double quotes'; 'Type' = 'Symbol'},
        [PSCustomObject]@{'AsciiCode' = '#'; 'Index' = '3'; 'Number' = '35'; 'Phonetic' = 'Hash sign'; 'Type' = 'Symbol'},
        [PSCustomObject]@{'AsciiCode' = '$'; 'Index' = '4'; 'Number' = '36'; 'Phonetic' = 'Dollar sign'; 'Type' = 'Symbol'},
        [PSCustomObject]@{'AsciiCode' = '%'; 'Index' = '5'; 'Number' = '37'; 'Phonetic' = 'Percent sign'; 'Type' = 'Symbol'},
...

无论如何，我认为你正在重新发明轮子可以在此处找到具有不同字符集（并且不包括特定字符）的PowerShell password generator：https://stackoverflow.com/a/37275209/1701026

Answer 2

一个相当晚的第二个答案，但我还没有完成我的项目......

可读性

你写了＆＃34; 总而言之，我可以忍受性能提升，但如果有办法优化代码，为什么不＆＃34;会建议你不要寻求提高性能，而是寻求更容易阅读的东西。回答：
目前，转换器有许多列表格式可供您导入对象列表，但每个选项都有一个源表，如下所示：

JSON 对象（使用ConvertFrom-JSON）主要用于复杂对象，但对于列表对象不方便（对于 PSON 对象，使用{{ 3}}我的目的）。
您可以将您的商家信息放在 XMLDocument 中，然后使用标准PowerShell [XML]解析器对其进行解析。但这并不容易阅读，因为这是为了满足这一要求。
您还可以考虑使用 CSV 列表（使用ConvertTo-Expression cmdlet），但实际上只支持字符串，并且在大多数情况下列不对齐，这使得它也难以阅读。
事实上，如果您可以使用ConvertFrom-CSV的输出，但没有可用的转换器可以转换回PowerShell对象，或者......

`Format-Table`

我创建的'ConvertFrom-SourceTable' cmdlet实际上可以将大多数'ConvertFrom-SourceTable' cmdlet输出转换回对象列表。此外，它可以处理字符串以外的数据类型。怎么样？请参阅：ConvertFrom-SourceTable -?。

以您的$asciiJson列表为例，并对其进行一些美化，因为我认为您实际上希望将Index和Number作为数字值甚至可以将ascii number格式化为十六进制数。为了进一步展示它的功能，我使用AsciiCode（[Char]的简写，或者如果您愿意; [Char]Char）将[Char]AsciiCode列更改为字符列，它实际上也取代{ {1}}列，例如：number：

[Int]$AsciiTable[0].Char

现在只需将结果放在一个字符串中（或者在你的情况下，这是一个here-string，因为它包含引号）：

$AsciiTable | Select -Property ` @{Name='Index'; Expression = {[Int]$_.Index}}, @{Name='Number'; Expression = {" 0x{0:X2}" -f [Int]$_.Number}}, @{Name='[Char]'; Expression = {$_.AsciiCode}}, Phonetic, Type | Format-Table

证明它有效：

$AsciiTable = ConvertFrom-SourceTable @' Index Number [Char] Phonetic Type ----- ------ ------ -------- ---- 1 0x21 ! Exclamation point Symbol 2 0x22 " Double quotes Symbol 3 0x23 # Hash sign Symbol 4 0x24 $ Dollar sign Symbol 5 0x25 % Percent sign Symbol 6 0x26 & Ampersand Symbol 7 0x27 ' Single quote Symbol 8 0x28 ( Opening parenthesis Symbol 9 0x29 ) Closing parenthesis Symbol 10 0x2A * Asterisk Symbol 11 0x2B + Plus sign Symbol 12 0x2C , Comma Symbol 13 0x2D - Minus sign -Hyphen Symbol 14 0x2E . Period Symbol 15 0x2F / Slash Symbol 16 0x3A : Colon Symbol 17 0x3B ; SemiColon Symbol 18 0x3C < Less than sign Symbol 19 0x3D = Equal sign Symbol 20 0x3E > Greater than sign Symbol 21 0x3F ? Question mark Symbol 22 0x40 @ At symbol Symbol 23 0x5B [ Opening bracket Symbol 24 0x5C \ Backslash Symbol 25 0x5D ] Closing bracket Symbol 26 0x5E ^ Caret - circumflex Symbol 27 0x5F _ Underscore Symbol 29 0x7B { Opening brace Symbol 30 0x7C | Vertical bar Symbol 31 0x7D } Closing brace Symbol 33 0x41 A Alpha Capital Letter 34 0x42 B Bravo Capital Letter 35 0x43 C Charlie Capital Letter 36 0x44 D Delta Capital Letter 37 0x45 E Echo Capital Letter 38 0x46 F Foxtrot Capital Letter 39 0x47 G Golf Capital Letter 40 0x48 H Hotel Capital Letter 41 0x49 I India Capital Letter 42 0x4A J Juliet Capital Letter 43 0x4B K Kilo Capital Letter 44 0x4C L Lima Capital Letter 45 0x4D M Mike Capital Letter 46 0x4E N November Capital Letter 47 0x4F O Oscar Capital Letter 48 0x50 P Papa Capital Letter 49 0x51 Q Quebec Capital Letter 50 0x52 R Romeo Capital Letter 51 0x53 S Sierra Capital Letter 52 0x54 T Tango Capital Letter 53 0x55 U Uniform Capital Letter 54 0x56 V Victor Capital Letter 55 0x57 W Whiskey Capital Letter 56 0x58 X X-Ray Capital Letter 57 0x59 Y Yankee Capital Letter 58 0x5A Z Zulu Capital Letter 59 0x61 a Alpha Lowercase Letter 60 0x62 b Bravo Lowercase Letter 61 0x63 c Charlie Lowercase Letter 62 0x64 d Delta Lowercase Letter 63 0x65 e Echo Lowercase Letter 64 0x66 f Foxtrot Lowercase Letter 65 0x67 g Golf Lowercase Letter 66 0x68 h Hotel Lowercase Letter 67 0x69 i India Lowercase Letter 68 0x6A j Juliet Lowercase Letter 69 0x6B k Kilo Lowercase Letter 70 0x6C l Lima Lowercase Letter 71 0x6D m Mike Lowercase Letter 72 0x6E n November Lowercase Letter 73 0x6F o Oscar Lowercase Letter 74 0x70 p Papa Lowercase Letter 75 0x71 q Quebec Lowercase Letter 76 0x72 r Romeo Lowercase Letter 77 0x73 s Sierra Lowercase Letter 78 0x74 t Tango Lowercase Letter 79 0x75 u Uniform Lowercase Letter 80 0x76 v Victor Lowercase Letter 81 0x77 w Whiskey Lowercase Letter 82 0x78 x X-Ray Lowercase Letter 83 0x79 y Yankee Lowercase Letter 84 0x7A z Zulu Lowercase Letter 85 0x30 0 Zero Number 86 0x31 1 One Number 87 0x32 2 Two Number 88 0x33 3 Three Number 89 0x34 4 Four Number 90 0x35 5 Five Number 91 0x36 6 Six Number 92 0x37 7 Seven Number 93 0x38 8 Eight Number 94 0x39 9 Nine Number '@

_{Format-Table可在PowerShell库中下载，而ConvertFrom-SourceTable cmdlet存储库中可以找到源代码。}

PowerShell解析Json文件

2 个答案:

可读性

`Format-Table`