{"id":33121,"date":"2010-11-30T18:05:17","date_gmt":"2010-11-30T17:05:17","guid":{"rendered":"https:\/\/www.fuhaijun.com\/?p=33121"},"modified":"2024-11-06T11:21:43","modified_gmt":"2024-11-06T03:21:43","slug":"windows-powershell-2-0-%e4%bb%a3%e7%a0%81%e8%b0%83%e8%af%95%e5%b9%b6%e6%8e%92%e9%99%a4bug","status":"publish","type":"post","link":"https:\/\/www.fuhaijun.com\/?p=33121","title":{"rendered":"Windows PowerShell 2.0 \u4ee3\u7801\u8c03\u8bd5\u5e76\u6392\u9664bug"},"content":{"rendered":"

\u6ca1\u6709\u4efb\u4f55\u811a\u672c\u6216\u7a0b\u5e8f\u80fd\u591f\u4fdd\u8bc1\u5728\u4efb\u4f55\u60c5\u51b5\u4e0b\u6beb\u65e0\u9519\u8bef\u5730\u6267\u884c\uff0c\u5728\u5916\u754c\u6761\u4ef6\u53d8\u5316\u7684\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u9884\u9632\u53ef\u80fd\u51fa\u9519\u4e4b\u5904\u3002\u672c\u6587\u5c06\u7740\u91cd\u8bb2\u89e3\u5982\u4f55\u8c03\u8bd5PowerShell\u4ee3\u7801\uff0c\u5373\u67e5\u627e\u5e76\u6392\u9664bug\uff0c\u8fd9\u662f\u6bcf\u4e2a\u5f00\u53d1\u4eba\u5458\u90fd\u5e94\u8be5\u719f\u7ec3\u638c\u63e1\u7684\u6280\u672f\u3002\u5728\u672c\u6587\u5c06\u4ecb\u7ecdPowerShell\u63d0\u4f9b\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u4ee5\u53ca\u8bca\u65ad\u548c\u9884\u9632\u9519\u8bef\u7684\u65b9\u6cd5\uff0c\u4ee5\u4f7f\u7a0b\u5e8f\u66f4\u52a0\u5065\u58ee\u548c\u7a33\u5b9a\u3002 <\/p>\n

\u5927\u591a\u6570\u7f16\u7a0b\u8bed\u8a00\u548c\u73af\u5883\u63d0\u4f9b\u4e86\u5b8c\u6574\u8c03\u8bd5\u7279\u6027\u7684\u7cfb\u7edf\uff0c\u53ef\u4ee5\u9010\u6b65\u8ddf\u8e2a\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u4fdd\u8bc1\u6240\u6709\u7684\u6267\u884c\u8fc7\u7a0b\u7b26\u5408\u9884\u5b9a\u7684\u7b97\u6cd5\u3002\u7136\u800cPowerShell\u5e76\u6ca1\u6709\u63d0\u4f9b\u811a\u672c\u8c03\u8bd5\u7a0b\u5e8f\uff0c\u8fd9\u6837\u5f00\u53d1\u4eba\u5458\u5fc5\u987b\u91c7\u53d6\u5176\u4ed6\u624b\u6bb5\u6765\u8c03\u8bd5\u9519\u8bef\u3002\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e9b\u5de7\u5999\u7684\u624b\u6bb5\u8d34\u8fd1\u4e8e\u5bf9\u7a0b\u5e8f\u7684\u9010\u6b65\u8c03\u8bd5\uff0c\u4e34\u65f6\u6302\u8d77\u6267\u884c\u6d41\u5e76\u68c0\u67e5\u7a0b\u5e8f\u72b6\u6001\u3002 <\/p>\n

\u5bf9\u4e8e\u4e00\u4e9b\u590d\u6742\u7684\u4efb\u52a1\uff0c\u901a\u5e38\u60c5\u51b5\u4e0b\u4f1a\u5c06\u7a0b\u5e8f\u7ec6\u5316\u5206\u89e3\u4e3a\u591a\u4e2a\u76f8\u5bf9\u72ec\u7acb\u7684\u5b50\u6a21\u5757\u6765\u68c0\u67e5\u5404\u81ea\u7684\u529f\u80fd\u3002\u5206\u89e3\u540e\u7684\u6a21\u5757\u4e4b\u95f4\u8981\u5c3d\u53ef\u80fd\u4e0d\u5305\u542b\u8fc7\u591a\u8026\u5408\uff0c\u8fd9\u6837\u624d\u4e0d\u4f1a\u5728\u8c03\u8bd5\u65f6\u9020\u6210\u592a\u591a\u7684\u9ebb\u70e6\u3002 <\/p>\n

1 \u6253\u5370\u8c03\u8bd5 <\/p>\n

\u901a\u8fc7\u6253\u5370\u6765\u8c03\u8bd5\u7a0b\u5e8f\u662f\u6700\u539f\u59cb\u4e14\u5f88\u6709\u6548\u7684\u8c03\u8bd5\u65b9\u6cd5\uff0c\u5c3d\u7ba1\u8fd9\u79cd\u65b9\u6cd5\u76f8\u5bf9\u6bd4\u8f83\u7e41\u7410\uff0c\u4f46\u662f\u8fd9\u662f\u5f00\u53d1\u4eba\u5458\u7f16\u7a0b\u6240\u9700\u7684\u57fa\u672c\u529f\u3002\u6253\u5370\u8c03\u8bd5\u68c0\u67e5\u7a0b\u5e8f\u7684\u6267\u884c\u72b6\u6001\uff0c\u5e76\u5728\u7279\u5b9a\u7684\u6267\u884c\u6d41\u4e2d\u6dfb\u52a0\u6ce8\u5165\u4ee3\u7801\u6253\u5370\u5f53\u65f6\u7cfb\u7edf\u7684\u76f8\u5173\u4fe1\u606f\uff0c\u7136\u540e\u5c06\u8fd9\u4e9b\u4fe1\u606f\u548c\u9884\u671f\u7684\u4fe1\u606f\u8fdb\u884c\u6bd4\u8f83\u3002\u8fd9\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u8c03\u8bd5\u65b9\u6cd5\uff0c\u57fa\u672c\u4e0a\u9002\u7528\u4e8e\u5404\u79cd\u7f16\u7a0b\u8bed\u8a00\u3002\u5728PowerShell\u4e2d\u9700\u8981\u68c0\u67e5\u7684\u5185\u5bb9\u5305\u62ec\u811a\u672c\u53d8\u91cf\u3001\u73af\u5883\u53d8\u91cf\u3001\u6587\u4ef6\u5185\u5bb9\u548c\u6ce8\u518c\u8868\u952e\u503c\u7b49\uff0c\u6f5c\u5728\u7684\u5a01\u80c1\u662f\u5bb9\u6613\u5931\u53bb\u63a7\u5236\u6216\u8005\u5f15\u5165\u8fd0\u884c\u65f6\u7684\u903b\u8f91\u9519\u8bef\u3002\u6709\u6548\u63a7\u5236\u7684\u5173\u952e\u5728\u4e8e\u4fdd\u6301\u6ce8\u5165\u7684\u8f93\u51fa\u8bed\u53e5\u903b\u8f91\u7b80\u5355\uff0c\u5e76\u5206\u6a21\u5757\u8c03\u8bd5\u3002 <\/p>\n

\u6700\u65b9\u4fbf\u7684\u6253\u5370\u8c03\u8bd5\u5de5\u5177\u662fWrite-Host\uff0c\u5b83\u5c06\u8f93\u51fa\u5bf9\u8c61\u6216\u5b57\u7b26\u4e32\u76f4\u63a5\u8f93\u51fa\u5230\u63a7\u5236\u53f0\uff0c\u800c\u4e0d\u4f1a\u4f20\u9012\u5230\u5bf9\u8c61\u7ba1\u9053\u4e2d\u3002\u8be5\u5de5\u5177\u53ef\u4ee5\u8f93\u51fa\u5404\u79cd\u7c7b\u578b\u7684\u5bf9\u8c61\u548c\u96c6\u5408\uff0c\u4f7f\u7528\u4e0d\u540c\u7684\u989c\u8272\u533a\u5206\u5185\u5bb9\u5e76\u901a\u77e5\u7528\u6237\u5f53\u524d\u64cd\u4f5c\u7684\u5371\u9669\u7cfb\u6570\u3002\u5982\u7528\u7eff\u8272\u8868\u793a\u8bca\u65ad\u4fe1\u606f\uff0c\u7ea2\u8272\u8868\u793a\u8b66\u544a\u7b49\u3002\u8fd9\u662f\u901a\u8fc7\u8bbe\u5b9aBackgroundColor\u548cForegroundColor\u5c5e\u6027\u5b9e\u73b0\u7684\uff0c\u8fd9\u4e24\u4e2a\u5c5e\u6027\u7684\u53d6\u503c\u5305\u62ecBlack\u3001DarkBlue\u3001DarkGreen\u3001DarkCyan\u3001DarkRed\u3001DarkMagenta\u3001DarkYellow\u3001Gray\u3001DarkGray\u3001Blue\u3001Green\u3001Cyan\u3001Red\u3001Magenta\u3001Yellow\u548cWhite\u3002 <\/p>\n

\u521b\u5efa\u540d\u4e3a\u201cPrite-Debug.ps1\u201d\u7684\u811a\u672c\u6587\u4ef6\u8ba1\u7b97\u5e76\u5206\u522b\u7528\u7279\u6b8a\u7684\u524d\u666f\u8272\u548c\u80cc\u666f\u8272\u663e\u793a\u6587\u672c\u6587\u4ef6\u4e2d\u7684\u5b57\u7b26\u6570\u91cf\u3002\u5728\u8be5\u811a\u672c\u4e2d\u5b9a\u4e49\u540d\u4e3a\u201cCount-Characters\u201d\u7684\u51fd\u6570\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n

function Count-Characters($file)\n{\nWrite-Host "Opening $file" -Background White -Foreground DarkGreen\n$content = ""\nif (Test-Path $file)\n{\n$content = Get-Content $file\n}\nWrite-Host "File contains $($content.Length) characters" `\n-Background White -Foreground DarkGreen\n}\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u5176\u4e2d\u7684\u51fd\u6570\u9ed8\u8ba4\u5b9a\u4e49Content\u5b57\u7b26\u4e32\uff0c\u9996\u5148\u4f7f\u7528Test-Path cmdlet\u68c0\u67e5\u6587\u4ef6\u662f\u5426\u5b58\u5728\u3002\u5982\u679c\u5b58\u5728\uff0c\u5219\u4f7f\u7528Get-Content cmdlet\u8bfb\u53d6\u6587\u4ef6\u7684\u5185\u5bb9\u3002\u51fd\u6570\u4e2d\u7528\u767d\u8272\u7684\u80cc\u666f\u8272\u548c\u6df1\u7eff\u8272\u7684\u524d\u666f\u8272\u5206\u522b\u5728\u6253\u5f00\u6587\u4ef6\u524d\u53ca\u8bfb\u53d6\u6587\u4ef6\u540e\u8f93\u51fa\u4e24\u884c\u8bca\u65ad\u4fe1\u606f\uff0c\u811a\u672c\u6267\u884c\u7ed3\u679c\u5982\u56fe1\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\uff081\uff09\u751f\u6210\u8be6\u7ec6\u8f93\u51fa <\/p>\n
\u5f88\u591a\u65f6\u5019\u9700\u8981\u8f93\u51fa\u4e00\u4e9b\u7528\u6237\u5e76\u4e0d\u9700\u8981\u770b\u5230\u7684\u8bca\u65ad\u4fe1\u606f\u4e3a\u6b64\u3002\u800c\u4e14\u4f1a\u4f7f\u63a7\u5236\u53f0\u5c4f\u5e55\u6742\u4e71\u65e0\u7ae0\uff0c\u4e3a\u6b64\u9700\u8981\u6709\u65b9\u6cd5\u751f\u6210\u6613\u4e8e\u6253\u5f00\u548c\u5173\u95ed\u7684\u8bca\u65ad\u4fe1\u606f\u3002PowerShell\u63d0\u4f9b\u4e86\u9002\u4e8e\u8bca\u65ad\u7684cmdlet\uff0c\u5305\u62ecWrite-Verbose\u3001Write-Warning\u548cWrite-Debug\u3002Write-Verbose\u7684\u7528\u6cd5\u5982\u56fe2\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u56e0\u4e3a\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u5173\u95edWrite-Verbose\u8f93\u51fa\uff0c\u6240\u4ee5\u7b2c1\u884c\u4e2d\u7684Write-Verbose\u6267\u884c\u540e\u5e76\u6ca1\u6709\u5c06\u5b57\u7b26\u6253\u5370\u5230\u63a7\u5236\u53f0\u3002\u5982\u679c\u9700\u8981\u6253\u5370\u5230\u63a7\u5236\u53f0\uff0c\u5219\u5982\u56fe\u4e2d\u7b2c3\u884c\u6240\u793a\u5728cmdlet\u540e\u589e\u52a0-Verbose\u53c2\u6570\u3002\u7531\u4e8e\u6bcf\u4e2a\u8f93\u51fa\u9700\u8981\u5728\u8c03\u8bd5\u65f6\u5220\u9664\u6216\u589e\u52a0-Verbose\u53c2\u6570\uff0c\u6240\u4ee5\u5e76\u6ca1\u6709\u51cf\u5c11\u5de5\u4f5c\u91cf\u3002PowerShell\u63d0\u4f9b\u4e86\u5168\u5c40\u53d8\u91cf$VerbosePreference\uff0c\u9ed8\u8ba4\u503c\u4e3aSilentlyContinue\u3002\u4e3a\u4e86\u80fd\u591f\u770b\u5230\u8f93\u51fa\uff0c\u9700\u8981\u5c06\u5176\u6539\u4e3aContinue\uff0c\u5982\u56fe2\u6240\u793a\u7684\u6700\u540e\u4e24\u4e2a\u547d\u4ee4\u3002 <\/p>\n
$VerbosePreference\u7684\u53d6\u503c\u8fd8\u5305\u62ecStop\u548cInquire\uff0c\u4e3aStop\uff0cShell\u5c06\u4f1a\u751f\u6210\u505c\u6b62\u9519\u8bef\u5e76\u4f1a\u963b\u6b62\u5269\u4f59\u4ee3\u7801\u7684\u6267\u884c\uff1b\u4e3aInquire\uff0cShell\u5c06\u4f1a\u8be2\u95ee\u7528\u6237\u5982\u4f55\u6267\u884c\u4e0b\u4e00\u6b65\u64cd\u4f5c\uff0c\u5982\u56fe3\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u4f7f\u7528Write-Verbose\u7684\u597d\u5904\u662f\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u6267\u884c\u4e00\u6761\u547d\u4ee4\u6253\u5f00\u6240\u6709\u7684\u8c03\u8bd5\u4fe1\u606f\uff0c\u800c\u5728\u4e0d\u9700\u8981\u663e\u793a\u65f6\u4e5f\u53ef\u65b9\u4fbf\u5730\u5173\u95ed\uff0c\u5e38\u7528\u7684\u4e24\u4e2a\u503c\u5373\u6253\u5f00\u548c\u5173\u95ed\u8f93\u51fa\u7684Continue\u548cSilentlyContinue\u3002 <\/p>\n
\u4fee\u6539Count-Characters\u51fd\u6570\uff0c\u5728\u8c03\u7528\u4e4b\u540e\u7acb\u5373\u751f\u6210\u8be6\u7ec6\u7684\u8c03\u8bd5\u4fe1\u606f\u3002\u5c06\u811a\u672c\u4fdd\u5b58\u4e3a\u201cPrint-DebugVerboseOn.ps1\u201d\u6587\u4ef6\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Count-Characters($file)\n{\n$functionName = $MyInvocation.MyCommand.Name\nWrite-Verbose "Entering $functionName"\nWrite-Host "Opening $file" -Background White -Foreground DarkGreen\n$content = ""\nif (Test-Path $file)\n{\n$content = Get-Content $file\n}\nWrite-Host "File contains $($content.Length) characters" `\n-Background White -Foreground DarkGreen\nWrite-Verbose "Leaving $functionName"\n}\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u5176\u4e2d\u5305\u542b\u8c03\u8bd5\u4fe1\u606f\uff0c\u5728\u8c03\u8bd5\u65f6\u53ea\u9700\u8981\u5c06\u53d8\u91cf$VerbosePreference\u7684\u503c\u8bbe\u7f6e\u4e3aContinue\u3002\u5982\u679c\u8981\u5173\u95ed\u8c03\u8bd5\u4fe1\u606f\uff0c\u5219\u8bbe\u7f6e\u4e3aSilentlyContinue\uff0c\u811a\u672c\u6267\u884c\u7ed3\u679c\u5982\u56fe4\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u5177\u6709\u8f83\u5f3a\u7684\u8bca\u65ad\u4fe1\u606f\u529f\u80fd\uff0c\u4f46\u662f\u5728\u8c03\u8bd5\u65f6\u9700\u8981\u5c06\u5176\u653e\u7f6e\u5728\u8c03\u8bd5\u7684\u4ee3\u7801\u4e2d\uff0c\u5de5\u4f5c\u91cf\u8f83\u5927\u3002\u4e3a\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u521b\u5efa\u540d\u4e3a\u201cPrint-DebugWithInstrument.ps1\u201d\u811a\u672c\u3002\u5728\u5176\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a\u201cInstrument-Function\u201d\u7684\u51fd\u6570\uff0c\u4f7f\u7528\u811a\u672c\u5757\u5c01\u88c5\u539f\u59cb\u7684\u51fd\u6570\u4f53\u3002\u8be5\u51fd\u6570\u5305\u542b\u7528\u4e8e\u8bca\u65ad\u7684\u4ee3\u7801\uff0c\u5e76\u5728\u8c03\u7528\u539f\u59cb\u51fd\u6570\u4f53\u524d\u540e\u5206\u522b\u751f\u6210\u8be6\u7ec6\u7684\u8f93\u51fa\u4fe1\u606f\u3002\u8fd9\u4e9b\u8c03\u8bd5\u4fe1\u606f\u9700\u8981\u7ee7\u7eed\u653e\u5728\u6e90\u4ee3\u7801\u4e2d\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Instrument-Function($body)\n{\n$parentInvocation = Get-Variable MyInvocation -scope 1 -ValueOnly\n$functionName = $parentInvocation.MyCommand.Name\nWrite-Verbose "Entering $functionName"\n&$body\nWrite-Verbose "Leaving $functionName"\n}\nfunction Count-Characters($file)\n{\nInstrument-Function {\nWrite-Host "Opening $file" `\n-Background White -Foreground DarkGreen\n$content = ""\nif (Test-Path $file)\n{\n$content = Get-Content $file\n}\nWrite-Host "File contains $($content.Length) characters" `\n-Background White -Foreground DarkGreen\n}\n}\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u53ef\u4ee5\u770b\u5230Count-Character\u51fd\u6570\u7684\u5b9a\u4e49\u548c\u4e4b\u524d\u7684\u4ee3\u7801\u57fa\u672c\u76f8\u4f3c\uff0c\u552f\u4e00\u4e0d\u540c\u662f\u539f\u59cb\u4ee3\u7801\u5728\u811a\u672c\u5757\u4e2d\u5c01\u88c5\uff0c\u7136\u540e\u4f20\u9012\u7ed9Instrument-Function\u5904\u7406\u3002Instrument-Function\u9700\u8981\u51fd\u6570\u540d\u751f\u6210\u8bca\u65ad\u8f93\u51fa\u4fe1\u606f\uff0c\u8fd9\u662f\u901a\u8fc7Get-Variable cmdlet\u5728\u7236\u4f5c\u7528\u57df\u4e2d\u67e5\u627e\u8c03\u7528\u4fe1\u606f\u6765\u5b9e\u73b0\u7684\u3002\u4e0a\u8ff0\u4ee3\u7801\u7684\u6267\u884c\u7ed3\u679c\u4e0e\u4e0a\u4e2a\u5b9e\u4f8b\u76f8\u540c\uff0c\u8fd9\u6837\u5de7\u5999\u5730\u8f93\u51fa\u4e86\u8be6\u7ec6\u4fe1\u606f\u3002\u7531\u4e8e\u65b0\u7684\u811a\u672c\u5757\u4e2d\u4e0d\u5305\u542b\u539f\u59cb\u81ea\u52a8\u53d8\u91cf$Args\uff0c\u6240\u4ee5\u65e0\u6cd5\u4f5c\u7528\u4e8e\u672a\u547d\u540d\u51fd\u6570\u53c2\u6570\u3002 <\/p>\n
\uff082\uff09\u751f\u6210\u8c03\u8bd5\u8f93\u51fa <\/p>\n
\u8c03\u8bd5\u8f93\u51fa\u662f\u811a\u672c\u8c03\u8bd5\u4fe1\u606f\u540c\u6bd4\u8f83\u7279\u6b8a\u7684\u4e00\u79cd\uff0c\u4e0d\u540c\u4e8e\u524d\u9762\u7684\u8be6\u7ec6\u8f93\u51fa\u4fe1\u606f\uff0c\u8c03\u8bd5\u4fe1\u606f\u53ea\u662f\u9002\u7528\u4e8e\u811a\u672c\u4f5c\u8005\u3002\u5373\u4f7f\u662f\u9ad8\u7ea7\u7528\u6237\u4e5f\u5f88\u96be\u4ece\u8fd9\u4e9b\u8c03\u8bd5\u4fe1\u606f\u4e2d\u83b7\u53d6\u5230\u6240\u9700\u7684\u6709\u7528\u4fe1\u606f\uff0c\u56e0\u4e3a\u8c03\u8bd5\u4fe1\u606f\u4f1a\u5305\u542b\u5185\u5728\u7684\u9519\u8bef\u3001\u4e2d\u95f4\u53d8\u91cf\u7684\u5185\u5bb9\u53ca\u5176\u4ed6\u6709\u52a9\u4e8e\u811a\u672c\u4f5c\u8005\u627e\u51fabug\u548c\u5f02\u5e38\u7684\u4fe1\u606f\u3002 <\/p>\n
\u53ef\u4ee5\u901a\u8fc7Write-Debug cmdlet\u751f\u6210\u8c03\u8bd5\u4fe1\u606f\uff0c\u5982\u56fe5\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u9ed8\u8ba4\u5173\u95ed\u8c03\u8bd5\u4fe1\u606f\uff0c\u5982\u679c\u8981\u6253\u5f00\uff0c\u9700\u8981\u5728\u811a\u672c\u6700\u540e\u6dfb\u52a0-Debug\u53c2\u6570\u3002\u5f53Shell\u6536\u5230\u8c03\u8bd5\u8f93\u51fa\u7684\u8bf7\u6c42\u65f6\uff0c\u5c06\u4f1a\u5411\u7528\u6237\u786e\u8ba4\u4e0b\u4e00\u6b65\u7684\u64cd\u4f5c\u3002\u4e0e$VerbosePreference\u7c7b\u4f3c\uff0cWrite-Debug\u4e5f\u6709\u4e00\u4e2a\u7528\u4e8e\u63a7\u5236\u7684\u5bf9\u8c61$DebugPreference\uff0c\u9ed8\u8ba4\u503c\u4e5f\u4e3aSilentlyContinue\u3002\u5728\u4e0a\u4e00\u4e2a\u5b9e\u4f8b\u4e2d\u901a\u8fc7\u6dfb\u52a0-Debug\u53c2\u6570\u5f97\u5230\u786e\u8ba4\u4fe1\u606f\uff0c\u5373\u5c06\u8be5\u5bf9\u8c61\u7684\u503c\u8bbe\u7f6e\u4e3aInquire\uff0c\u5e76\u5c06\u5176\u8bbe\u7f6e\u4e3aContinue\u6765\u83b7\u53d6\u7b80\u5355\u7684\u4fe1\u606f\u3002 <\/p>\n
\u4e3a\u4e86\u901a\u8fc7\u6269\u5c55Instrument-Function\u6765\u6355\u83b7\u6240\u6709\u53ef\u80fd\u7531\u51fd\u6570\u4f53\u629b\u51fa\u7684\u9519\u8bef\uff0c\u521b\u5efa\u540d\u4e3a\u201cPrint-DebugOutput.ps1\u201d\u811a\u672c\u3002\u5728\u5176\u4e2d\u4fee\u6539Count-Characters\u51fd\u6570\u5728\u6587\u4ef6\u4e0d\u5b58\u5728\u7684\u60c5\u51b5\u4e0b\u629b\u51fa\u5f02\u5e38\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Instrument-Function($body)\n{\n$parentInvocation = Get-Variable MyInvocation -scope 1 -ValueOnly\n$functionName = $parentInvocation.MyCommand.Name\ntrap\n{\nWrite-Debug "$functionName raised an error"\n}\nWrite-Verbose "Entering $functionName"\n&$body\nWrite-Verbose "Leaving $functionName"\n}\nfunction Count-Characters($file)\n{\nInstrument-Function {\nWrite-Host "Opening $file" `\n-Background White -Foreground DarkGreen\n$content = ""\nif (Test-Path $file)\n{\n$content = Get-Content $file\n}\nelse\n{\nthrow "No such file"\n}\nWrite-Host "File contains $($content.Length) characters" `\n-Background White -Foreground DarkGreen\n}\n}\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u811a\u672c\u6267\u884c\u7ed3\u679c\u5982\u56fe6\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u53ef\u4ee5\u770b\u5230\u7b2c2\u4e2a\u51fd\u6570\u901a\u8fc7\u8c03\u7528\u5f62\u5f0f\u8fdb\u5165\u51fd\u6570\uff0c\u4f46\u5e76\u6ca1\u6709\u8f93\u51fa\u5176\u76f8\u5173\u5c5e\u6027\uff0c\u8fd9\u662f\u7531\u4e8e\u4ee3\u7801\u89e6\u53d1\u4e86\u5f02\u5e38\u3002\u53ef\u4ee5\u5c06$DebugPerference\u8bbe\u7f6e\u4e3aInquire\u6302\u8d77\u811a\u672c\u7684\u6267\u884c\uff0c\u5e76\u67e5\u770b\u5176\u4e2d\u7684\u8fd0\u884c\u73af\u5883\u3002\u8fd9\u5bf9\u4e8e\u83b7\u53d6\u53d1\u751f\u9519\u8bef\u7684\u9644\u52a0\u4fe1\u606f\u975e\u5e38\u6709\u7528\uff0c\u56fe7\u6240\u793a\u4e3a\u8c03\u8bd5\u7684\u8fc7\u7a0b\u3002 <\/p>\n
<\/p>\n
\u53ef\u4ee5\u770b\u5230\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u901a\u8fc7\u9010\u4e2a\u786e\u8ba4\u547d\u4ee4\u53ef\u4ee5\u6302\u8d77\u7a0b\u5e8f\u7684\u6267\u884c\uff0c\u4ee5\u68c0\u67e5\u8fd0\u884c\u7684\u76f8\u5173\u6761\u4ef6\u3002\u5728\u7a0b\u5e8f\u4e2d\u53ef\u4ee5\u68c0\u67e5$file\u53d8\u91cf\u503c\uff0c\u5728\u540e\u9762\u7684\u8c03\u7528\u4e2d\u53ef\u4ee5\u770b\u5230\u6253\u5f00nosuchfile.txt\u6587\u4ef6\u65f6\u51fa\u73b0\u9519\u8bef\u3002\u7136\u540e\u4f7f\u7528exit\u547d\u4ee4\u9000\u51fa\u5d4c\u5957\u7684\u547d\u4ee4\u63d0\u793a\u7b26\uff0c\u8fd4\u56de\u5230Write-Debug\u7684\u547d\u4ee4\u63d0\u793a\u7b26\u4e0b\u3002\u8fd9\u662f\u975e\u5e38\u6709\u7528\u7684\u4e00\u79cd\u673a\u5236\uff0c\u7c7b\u4f3c\u8c03\u8bd5\u7a0b\u5e8f\u65f6\u4f7f\u7528\u7684\u65ad\u70b9\u3002 <\/p>\n
\uff083\uff09\u751f\u6210\u8b66\u544a <\/p>\n
\u8b66\u544a\u662f\u4e00\u79cd\u8bca\u65ad\u8f93\u51fa\u7684\u5f62\u5f0f\uff0c\u4e3b\u8981\u9488\u5bf9\u9700\u8981\u67e5\u770b\u7684\u975e\u5371\u673a\u6027\u4fe1\u606f\u3002\u8b66\u544a\u4fe1\u606f\u901a\u5e38\u610f\u5473\u7740\u811a\u672c\u7684\u8fd0\u884c\u7684\u73af\u5883\u4e2d\u5b58\u5728\u95ee\u9898\uff0c\u4f46\u662f\u811a\u672c\u53ef\u80fd\u77e5\u9053\u5982\u4f55\u5904\u7406\u8fd9\u4e9b\u95ee\u9898\u3002\u5e76\u4e14\u5c06\u4f1a\u7ee7\u7eed\u6267\u884c\uff0c\u5411\u7528\u6237\u4f20\u8fbe\u4fe1\u606f\u3002\u4e00\u65e6\u811a\u672c\u6267\u884c\u53d1\u751f\u9519\u8bef\uff0c\u7528\u6237\u4f1a\u77e5\u9053\u5982\u4f55\u5904\u7406\u3002Write-Warning\u662f\u8f93\u51fa\u8b66\u544a\u4fe1\u606f\u7684cmdllet\uff0c\u5982\u56fe8\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u8b66\u544a\u901a\u8fc7\u63a7\u5236\u53f0\u8f93\u51fa\u3002\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5168\u5c40\u53d8\u91cf$WarningPreference\u6765\u63a7\u5236\u662f\u5426\u663e\u793a\u8b66\u544a\u4fe1\u606f\uff0c\u5176\u9ed8\u8ba4\u503c\u4e3aContinue\u3002\u53ef\u4ee5\u901a\u8fc7\u5c06\u5176\u8bbe\u7f6e\u4e3aSilentlyContinue\u6765\u5ffd\u7565\u8b66\u544a\u4fe1\u606f\u6216\u8005\u8bbe\u7f6e\u4e3aInquire\u6765\u9010\u53e5\u8c03\u8bd5\u811a\u672c\uff0c\u68c0\u67e5\u5f53\u65f6\u7684\u6267\u884c\u72b6\u51b5\u3002 <\/p>\n
\u5728Count-Characters\u51fd\u6570\u4e2d\u629b\u51fa\u7684\u5f02\u5e38\u5e76\u4e0d\u5408\u9002\uff0c\u56e0\u4e3a\u4e0d\u5b58\u5728\u6587\u4ef6\u7684\u5927\u5c0f\u4e3a\u96f6\u5b57\u8282\u662f\u6b63\u5e38\u7684\u3002\u8fd9\u91cc\u4f7f\u7528\u8b66\u544a\u6765\u63d0\u793a\u7528\u6237\u66f4\u4e3a\u5408\u9002\uff0c\u4e0b\u9762\u6539\u5199\u811a\u672c\u5e76\u547d\u540d\u4e3a\u201cPrint-Warning.ps1\u201d\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Instrument-Function($body)\n{\n\t\t$parentInvocation = Get-Variable MyInvocation -scope 1 -ValueOnly\n\t\t$functionName = $parentInvocation.MyCommand.Name\n\t\ttrap\n\t\t{\n\t\t\tWrite-Debug "$functionName raised an error"\n\t\t}\n\t\tWrite-Verbose "Entering $functionName"\n\t\t&$body\n\t\tWrite-Verbose "Leaving $functionName"\n}\nfunction Count-Characters($file)\n{\n\t\tInstrument-Function {\n\t\tWrite-Host "Opening $file" `\n\t\t-Background White -Foreground DarkGreen\n\t\t$content = ""\n\t\tif (Test-Path $file)\n\t\t{\n\t\t\t$content = Get-Content $file\n\t\t}\n\t\telse\n\t\t{\n\t\t\tWrite-Warning "$file does not exist."\n\t\t}\nWrite-Host "File contains $($content.Length) characters" `\n-Background White -Foreground DarkGreen\n\t\t}\n}\n\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u8fd0\u884c\u811a\u672c\u5e76\u5148\u540e\u8bbe\u7f6e$WarningPreference\u5bf9\u8c61\u7684\u5185\u5bb9\uff0c\u8fd9\u6837\u5373\u53ef\u770b\u5230\u8c03\u8bd5\u4fe1\u606f\uff0c\u6267\u884c\u7ed3\u679c\u5982\u56fe9\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u5f53\u8981\u68c0\u6d4b\u7684\u6587\u4ef6\u4e0d\u5b58\u5728\u65f6\u663e\u793a\u76f8\u5e94\u7684\u63d0\u793a\uff0c\u4f7f\u7528\u6237\u660e\u786e\u77e5\u9053\u95ee\u9898\u6240\u5728\u3002\u5982\u679c\u7528\u6237\u5bf9\u8fd9\u4e9b\u5185\u5bb9\u4e0d\u611f\u5174\u8da3\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u5c06\u5176\u5173\u95ed\u3002 <\/p>\n
\uff084\uff09\u63a7\u5236\u9519\u8bef\u8f93\u51fa <\/p>\n
Write-Verbose\u3001Write-Debug\u548cWrite-Warning\u7531\u4e8e\u5bf9\u9519\u8bef\u4fe1\u606f\u7684\u8986\u76d6\u9762\u4e0d\u540c\uff0c\u6240\u4ee5\u9002\u7528\u4e8e\u4e0d\u540c\u7684\u8c03\u8bd5\u548c\u4f7f\u7528\u573a\u5408\uff1b\u53e6\u5916\u4e00\u4e2a\u7c7b\u4f3c\u7684cmdlet\u662fWrite-Error\uff0c\u4e5f\u53ef\u4ee5\u7528\u5176\u5168\u5c40\u53d8\u91cf$ErrorActionPreference\u6765\u63a7\u5236\u8f93\u51fa\u5185\u5bb9\uff0c\u5982\u56fe10\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u5982\u56fe\u4e2d\u6240\u793a\uff0c\u5728\u53d1\u751f\u672a\u77e5\u9519\u8bef\u65f6\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e$ErrorActionPreference\u7684\u503c\u4e3aInquire\u6302\u8d77\u5d4c\u5957\u7684\u6267\u884c\u4ee3\u7801\u6765\u67e5\u770b\u5f53\u65f6\u7684\u9519\u8bef\u6240\u5728\u3002 <\/p>\n
2 \u6b65\u8fdb\u8c03\u8bd5\u811a\u672c\u548c\u4e2d\u65ad\u6267\u884c <\/p>\n
\u6b65\u8fdb\u8c03\u8bd5\u4ee3\u7801\u662f\u4ee3\u7801\u6267\u884c\u7684\u7279\u6b8a\u72b6\u6001\uff0c\u4f1a\u5728\u6bcf\u4e00\u884c\u4ee3\u7801\u6267\u884c\u4e4b\u524d\u8be2\u95ee\u7528\u6237\u4e0b\u4e00\u6b65\u64cd\u4f5c\u3002\u8868\u9762\u4e0a\u770b\u8d77\u6765\u8fd9\u6837\u6267\u884c\u662f\u5f88\u7e41\u7410\u7684\uff0c\u4f46\u5728\u9047\u5230\u7a0b\u5e8f\u9519\u8bef\u65f6\u5374\u975e\u5e38\u6709\u6548\u3002\u5728\u6bcf\u4e2a\u8bed\u53e5\u524d\u6dfb\u52a0Set-PSDebug\u6765\u5b9e\u73b0\u6b65\u8fdb\u8c03\u8bd5\uff0cCount-Characters.ps1\u811a\u672c\u4e2d\u5305\u542bCount-Characters\u51fd\u6570\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Count-Characters($file)\n{\n$content = ""\nif (Test-Path $file)\n{\n$content = Get-Content $file\n}\nWrite-Host "File contains $($content.Length) characters"\n}\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u4e3a\u4e86\u9010\u4e2a\u8bed\u53e5\u6b65\u8fdb\u901a\u8fc7\u6574\u4e2a\u811a\u672c\uff0c\u9700\u8981\u5728\u6267\u884c\u811a\u672c\u4e4b\u524d\u8c03\u7528\u5e26\u6709Step\u53c2\u6570\u7684Set-PSDebug\u7684cmdlet\uff0c\u6267\u884c\u7ed3\u679c\u5982\u56fe11\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u4ece\u4e0a\u56fe\u4e2d\u53ef\u4ee5\u770b\u5230\u53ef\u5728\u7a0b\u5e8f\u6267\u884c\u7684\u4efb\u4f55\u4e00\u6b65\u6302\u8d77\u6267\u884c\uff0c\u5e76\u5728\u5d4c\u5957\u7684\u63d0\u793a\u7b26\u4e0b\u68c0\u67e5\u73af\u5883\u7684\u9644\u52a0\u4fe1\u606f\uff0c\u68c0\u67e5\u540e\u53ef\u4ee5\u7528exit\u547d\u4ee4\u9000\u51fa\u5d4c\u5957\u7684\u547d\u4ee4\u63d0\u793a\u7b26\u3002\u4e3a\u4e86\u8fd4\u56de\u6b63\u5e38\u7684Shell\uff0c\u53ef\u80fd\u9700\u8981\u91cd\u542fShell\u8fdb\u7a0b\u6216\u8005\u4f20\u9012Off\u53c2\u6570\u8c03\u7528Set-PSDebug\u5173\u95ed\u8c03\u8bd5\u6a21\u5f0f\uff0c\u5982\u56fe12\u6240\u793a\u3002 <\/p>\n
<\/p>\n
PowerShell\u672c\u8eab\u4e0d\u652f\u6301\u65ad\u70b9\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u6302\u8d77\u811a\u672c\u7684\u6267\u884c\u5e76\u542f\u52a8\u5d4c\u5957\u7684\u63d0\u793a\u7b26\u67e5\u8be2\u53d8\u91cf\u5185\u5bb9\u6216\u4fee\u6539\u73af\u5883\u7684\u5f62\u5f0f\u6a21\u62df\u8bbe\u7f6e\u65ad\u70b9\u3002\u4e0b\u9762\u521b\u5efa\u65b0\u7684\u811a\u672c\uff0c\u5e76\u547d\u540d\u4e3a\u201cCount-CharactersDebug.ps1\u201d\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Start-Debug\n{\nWrite-Host "Breakpoing hit!" -ForegroundColor Red\nfunction prompt\n{\n"DEBUG> "\n}\n$host.EnterNestedPrompt()\n}\nfunction Count-Characters($file)\n{\n$content = ""\nif (Test-Path $file)\n{\n$content = Get-Content $file\n}\nelse\n{\nStart-Debug\n}\nWrite-Host "File contains $($content.Length) characters"\n}\nCount-Characters Print-Debug.ps1\nCount-Characters nosuchfile.txt<\/pre>\n
\u4e0a\u8ff0\u4ee3\u7801\u6267\u884c\u65f6\u4ee5\u7ea2\u8272\u6807\u8bc6debug\u4fe1\u606f\uff0c\u4ee5\u533a\u522b\u5176\u4ed6\u4fe1\u606f\u3002\u53ef\u4ee5\u5728\u4f7f\u5f97\u5d4c\u5957\u8c03\u8bd5\u63d0\u793a\u4fe1\u606f\u66f4\u52a0\u9192\u76ee\uff0c\u4fbf\u4e8e\u63d0\u793a\u7528\u6237\u6ce8\u610f\uff0c\u6267\u884c\u7ed3\u679c\u5982\u56fe13\u6240\u793a\u3002 <\/p>\n
<\/p>\n
3 \u8ddf\u8e2a\u811a\u672c\u6267\u884c\u7ec6\u8282 <\/p>\n
PowerShell\u6700\u5f3a\u5927\u7684\u529f\u80fd\u4e4b\u4e00\u662f\u901a\u8fc7\u8ddf\u8e2a\u547d\u4ee4\u6267\u884c\u6765\u8bca\u65ad\u548c\u89e3\u51b3\u5176\u4e2d\u5b58\u5728\u7684\u9519\u8bef\uff0c\u6240\u6709\u8c03\u8bd5\u7684\u529f\u80fd\u662f\u4e3a\u811a\u672c\u5f00\u53d1\u4eba\u5458\u3001cmdlet\u5f00\u53d1\u4eba\u5458\u6216\u8005\u9ad8\u7ea7\u7528\u6237\u51c6\u5907\u7684\u3002\u8fd9\u4e9b\u7528\u6237\u80fd\u8ddf\u8e2a\u8be6\u7ec6\u7684\u64cd\u4f5c\u65e5\u5fd7\uff0c\u5305\u62ecShell\u672c\u8eab\u53ca\u5176cmdlet\u3002\u5728PowerShell\u4e2d\u80fd\u591f\u89c2\u5bdf\u5230\u4e24\u7c7b\u8ddf\u8e2a\u65e5\u5fd7\uff0c\u4e00\u662fShell\u7684\u5185\u90e8\u64cd\u4f5c\uff0c\u5982\u8bbe\u7f6e\u53d8\u91cf\u53ca\u8c03\u7528\u51fd\u6570\u7684\uff1b\u4e8c\u662f\u5176\u4ed6\u80fd\u591f\u83b7\u53d6\u5230\u8ddf\u8e2a\u7684\u6307\u5b9a\u64cd\u4f5c\u3002 <\/p>\n
\uff081\uff09\u8ddf\u8e2aShell\u5185\u90e8\u64cd\u4f5c <\/p>\n
\u8ddf\u8e2a\u811a\u672c\u9700\u8981\u64cd\u4f5c\u7684\u76f8\u5173\u4fe1\u606f\u53ca\u6267\u884c\u7684\u987a\u5e8f\uff0c\u8981\u8c03\u7528Set-PSDebug cmdlet\u5e76\u4f20\u9012Trace\u53c2\u6570\u5c06Shell\u5207\u6362\u5230\u8ddf\u8e2a\u6a21\u5f0f\u3002PowerShell\u63d0\u4f9b1\u548c2\u4e24\u79cd\u7ea7\u522b\u7684\u8ddf\u8e2a\u65b9\u5f0f\uff0c\u540e\u4e00\u79cd\u4f1a\u751f\u6210\u66f4\u8be6\u7ec6\u7684\u8f93\u51fa\u3002\u4e0b\u9762\u521b\u5efa\u540d\u4e3a\u201cTrace-Command.ps1\u201d\u7684\u811a\u672c\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u4e24\u4e2a\u6570\u76f8\u9664\u7684\u64cd\u4f5c\u51fd\u6570Calculate\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a <\/p>\n
function Calculate($a, $b)\n{\n$result = $a \/ $b\nreturn $result\n}\nCalculate 1 2<\/pre>\n
\u4e3a\u4e86\u83b7\u53d6\u811a\u672c\u6267\u884c\u7684\u6240\u5728\u884c\uff0c\u5c06\u5f00\u5173\u7684\u8ddf\u8e2a\u5207\u6362\u5230\u7b49\u7ea71\u7684\u8c03\u8bd5\u72b6\u6001\uff0c\u6267\u884c\u7ed3\u679c\u5982\u56fe14\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u53ef\u4ee5\u770b\u5230\u5728\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\u9996\u5148\u5b9a\u4e49\u4e86Calculate\u51fd\u6570\uff0c\u5e76\u5728\u540e\u9762\u7b2c7\u884c\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570\uff0c\u7136\u540e\u5728\u7b2c3\u884c\u548c\u7b2c4\u884c\u6267\u884c\u51fd\u6570\u7684\u8ba1\u7b97\u64cd\u4f5c\u3002\u5982\u679c\u5c06\u8ddf\u8e2a\u7684\u7b49\u7ea7\u6539\u4e3a2\uff0c\u5219\u6267\u884c\u7ed3\u679c\u5982\u56fe15\u6240\u793a\u3002 <\/p>\n
\u9664\u4e86\u884c\u6570\u548c\u6267\u884c\u65e5\u5fd7\uff0c\u8fd8\u53ef\u4ee5\u83b7\u53d6\u88ab\u8c03\u7528\u811a\u672c\u548c\u51fd\u6570\u7684\u76f8\u5173\u4fe1\u606f\uff0c\u4ee5\u53ca\u53d8\u91cf\u8d4b\u503c\u7684\u65e5\u5fd7\uff0c\u8fd9\u662f\u8f93\u51fa\u65e5\u5fd7\u4e2d\u5305\u542b\u7684!\u8d77\u5230\u7684\u4f5c\u7528\u3002\u9700\u8981\u5f3a\u8c03\u7684\u662f\u53ef\u4ee5\u901a\u8fc7\u8868\u8fbe\u5f0f\u65b9\u5f0f\u83b7\u53d6\u590d\u6742\u811a\u672c\u7684\u5185\u5bb9\uff0c\u5e76\u901a\u8fc7\u8fd9\u4e9b\u4fe1\u606f\u8c03\u8bd5\u51fd\u6570\u540d\u51b2\u7a81\u548c\u4e0d\u5fc5\u8981\u7684\u51fd\u6570\u91cd\u8f7d\u3002 <\/p>\n
\u7ea7\u522b2\u53ef\u4ee5\u63d0\u4f9b\u547d\u4ee4\u6267\u884c\u7684\u8be6\u7ec6\u7684\u5185\u90e8\u4fe1\u606f\uff0c\u56fe16\u6240\u793a\u4e3a\u83b7\u53d6\u7684Get-Children\u6267\u884c\u7684\u8be6\u7ec6\u4fe1\u606f\u3002 <\/p>\n
<\/p>\n
\u5728\u7a0b\u5e8f\u6267\u884c\u65f6\u80fd\u591f\u770b\u5230\u8fd4\u56de\u5927\u6bb5\u7684\u65e5\u5fd7\uff0c\u4ece\u4e2d\u53ef\u4ee5\u770b\u5230Get-ChildItem\u6267\u884c\u65f6\u5728\u540e\u53f0\u89e6\u53d1\u4e86\u4e00\u4e9b\u590d\u6742\u7684\u64cd\u4f5c\uff0c\u5982\u8ba1\u7b97\u6587\u4ef6\u8bbf\u95ee\u5c5e\u6027\u76f8\u5173\u7684\u6743\u9650\u503c\u4ee5\u8f93\u51fa\u6587\u4ef6\u7684Mode\u5b57\u7b26\u4e32\uff0c\u4ee5\u53ca\u83b7\u53d6LastWriteTime\u5e76\u901a\u8fc7\u4f7f\u7528System.String.Format\u7684.NET\u65b9\u6cd5\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002\u4e00\u65e6\u8bbe\u7f6e\u4e86\u8c03\u8bd5\u72b6\u6001\uff0c\u5c31\u4f1a\u5728\u4efb\u4f55cmdlet\u6267\u884c\u7684\u8fc7\u7a0b\u4e2d\u8f93\u51fa\u76f8\u5173\u7684\u4e00\u4e9b\u8be6\u7ec6\u4fe1\u606f\uff0c\u8fd9\u5728\u8c03\u8bd5\u65f6\u5f88\u6709\u7528\u3002\u4e3a\u4e86\u91cd\u8f7d\u666e\u901a\u7684Shell\u64cd\u4f5c\u72b6\u6001\uff0c\u53ef\u4ee5\u91cd\u542fShell\u8fdb\u7a0b\u6216\u8005\u8c03\u7528Set-PSDebug \u2013Off\u547d\u4ee4\u3002 <\/p>\n
\uff082\uff09\u8ddf\u8e2a\u7279\u5b9a\u64cd\u4f5c <\/p>\n
PowerShell\u5141\u8bb8\u8ddf\u8e2a\u5176\u7ec4\u4ef6\u7684\u7279\u5b9a\u64cd\u4f5c\uff0c\u7528\u6237\u53ef\u4ee5\u83b7\u53d6\u547d\u4ee4\u6267\u884c\u7684\u76f8\u5173\u4fe1\u606f\u6216\u5728\u63d0\u793a\u7b26\u4e0b\u952e\u5165\u7279\u5b9a\u51fd\u6570\u3001\u811a\u672c\u5757\u3001\u7ed1\u5b9a\u53c2\u6570\u7684cmdlet\uff0c\u4ee5\u53ca\u663e\u5f0f\u6216\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u540eShell\u8c03\u7528\u7684\u547d\u4ee4\u3002\u4e3a\u4e86\u5f97\u5230\u8fd9\u4e9b\u4fe1\u606f\uff0c\u9700\u8981\u4f7f\u7528Trace-Command\u8fd9\u4e2acmdlet\u3002 <\/p>\n
\u9996\u5148\u4f7f\u7528Trace-Command\u83b7\u53d6\u5728\u6267\u884cgal ii\u547d\u4ee4\u65f6\u9700\u8981\u8c03\u7528\u547d\u4ee4\u7684\u4fe1\u606f\uff0c\u4e3a\u6b64\u9700\u8981\u8ddf\u8e2aCommandDiscovery\u7ec4\u4ef6\uff0c\u6267\u884c\u7ed3\u679c\u5982\u56fe17\u6240\u793a\u3002 <\/p>\n
<\/p>\n
\u5176\u4e2d\u6240\u793a\u7684gal\u547d\u4ee4\u6700\u540e\u89e3\u6790\u4e3aGet-Allias cmdlet\uff0c\u5728\u66f4\u6df1\u5c42\u6b21\u53ef\u770b\u5230Get-Alias\u88ab\u540d\u4e3a\u201cMicrosoft.PowerShell.Commands.GetAliasCommand\u201d\u7684.NET\u7c7b\u6267\u884c\uff0c\u800cPSHost\u53c2\u6570\u901a\u77e5Trace-Command\u5c06\u65e5\u5fd7\u6d88\u606f\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002 <\/p>\n
\u4e0b\u9762\u6f14\u793a\u5f53\u8c03\u7528cmdlet\u65f6\u5982\u4f55\u5c06\u53d8\u91cf\u7ed1\u5b9a\u5230cmdlet\u7684\u53c2\u6570\uff0c\u4ecd\u7136\u4f7f\u7528\u76f8\u540c\u7684\u547d\u4ee4\uff0c\u53ea\u662f\u5c06\u7ec4\u4ef6\u540d\u6362\u4e3aParameterBinding\uff0c\u6267\u884c\u7ed3\u679c\u5982\u56fe18\u6240\u793a\u3002 <\/p>\n
<\/p>\n
ii\u7684\u503c\u88ab\u4f5c\u4e3a\u4f4d\u7f6e\u548cName\u53c2\u6570\u6765\u89e3\u6790\u3002\u68c0\u67e5\u662f\u5426\u6709\u53c2\u6570\u7f3a\u5931\u4e4b\u540e\uff0cShell\u901a\u8fc7\u8c03\u7528BeginProcessing\u3001ProcessRecord\u548cEndProcessing\u7684\u987a\u5e8f\u4e3a\u8be5cmdlet\u6267\u884c\u7ba1\u9053\uff0c\u8fd9\u4e9b\u6b65\u9aa4\u7c7b\u4f3c\u51fd\u6570\u3001\u811a\u672c\u548c\u811a\u672c\u5757\u4e2d\u64cd\u4f5c\u7ba1\u9053\u7684begin\u3001process\u548cend\u3002 <\/p>\n
\u6700\u540e\u4f7f\u7528Trac-Command\u83b7\u53d6\u5173\u4e8e\u7c7b\u578b\u5f3a\u5236\u8f6c\u6362\u7684\u4fe1\u606f\uff0c\u9700\u8981\u8ddf\u8e2a\u7684\u7ec4\u4ef6\u53d8\u4e3aTypeConversion\u3002\u56fe19\u6240\u793a\u4e3a\u5728\u8ba1\u7b97\u8868\u8fbe\u5f0f\u65f6\u83b7\u53d6\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u4fe1\u606f\u7684\u65b9\u6cd5\u3002 <\/p>\n
<\/p>\n
\u4ece\u56fe\u4e2d\u53ef\u4ee5\u770b\u5230\u8fd4\u56de\u7684\u4fe1\u606f\u4e2d\u5305\u542bPowerShell\u4f1a\u5c061\u4eceinteger\u8f6c\u6362\u4e3adouble\u7c7b\u578b\uff0c\u5e76\u5206\u522b\u5c1d\u8bd5\u9690\u5f0f\u548c\u663e\u5f0f\u7684\u7c7b\u578b\u8f6c\u6362\u3002 <\/p>\n
\u5982\u679c\u672a\u5c0f\u5fc3\u4f7f\u7528\u547d\u4ee4\u8ddf\u8e2a\uff0c\u5c06\u4f1a\u5f97\u5230\u5927\u91cf\u65e0\u7528\u7684\u4fe1\u606f\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\u51fa\u73b0\u5728\u5176\u4ed6\u65b9\u6cd5\u65e0\u6cd5\u89e3\u51b3\u7684\u95ee\u9898\u65f6\uff0c\u624d\u4f1a\u4f7f\u7528\u8c03\u8bd5\u6a21\u5f0f\u6765\u5904\u7406\u3002 <\/p>\n
4 \u603b \u7ed3 <\/p>\n
\u9519\u8bef\u5904\u7406\u548c\u811a\u672c\u8c03\u8bd5\u7684\u4e3b\u9898\u76f8\u4e92\u9519\u7efc\u590d\u6742\u5730\u5173\u8054\u5728\u4e00\u8d77\uff0c\u52a0\u5f3a\u811a\u672c\u7684\u9519\u8bef\u5904\u7406\u903b\u8f91\u540e\u53ef\u4ee5\u5b9e\u73b0\u4ee3\u7801\u7684\u81ea\u8bca\u65ad\u3002\u8fd9\u6837\u5373\u53ef\u51cf\u5c11\u811a\u672c\u7684\u8c03\u8bd5\u5de5\u4f5c\uff0c\u5feb\u901f\u800c\u6709\u6548\u5730\u8fbe\u5230\u76ee\u6807\u9700\u6c42\u3002\u540c\u6837\u4e5f\u53ef\u4ee5\u901a\u8fc7\u9519\u8bef\u5904\u7406\u7684\u76f8\u5173\u6280\u672f\uff0c\u5982\u9519\u8bef\u9677\u9631\u8f93\u51fa\u9519\u8bef\u4fe1\u606f\u6765\u5feb\u901f\u8c03\u8bd5\u7a0b\u5e8f\u3002 <\/p>\n
\u4e3a\u4ee3\u7801\u6dfb\u52a0\u597d\u7684\u9519\u8bef\u5904\u7406\u5904\u7406\u673a\u5236\u662f\u5f00\u53d1\u4eba\u5458\u5e94\u8be5\u6ce8\u610f\u7684\u95ee\u9898\uff0c\u8fd9\u6837\u80fd\u591f\u5927\u5927\u7f29\u77ed\u8c03\u8bd5\u7684\u65f6\u95f4\uff0c\u800c\u4e14\u4efb\u4f55\u4f7f\u7528\u4ee3\u7801\u7684\u4eba\u90fd\u53ef\u4ee5\u4ece\u4e2d\u53d7\u76ca\u3002\u672c\u6587\u5c06\u7740\u91cd\u8bb2\u89e3\u4e86\u8c03\u8bd5PowerShell\u4ee3\u7801\uff0c\u5373\u67e5\u627e\u5e76\u6392\u9664bug\uff0c\u8fd9\u662f\u6bcf\u4e2a\u5f00\u53d1\u4eba\u5458\u90fd\u5e94\u8be5\u719f\u7ec3\u638c\u63e1\u7684\u6280\u672f\u3002\u5728\u672c\u6587\u8fd8\u4ecb\u7ecd\u4e86PowerShell\u63d0\u4f9b\u7684\u89e3\u51b3\u65b9\u6cd5\uff0c\u4ee5\u53ca\u8bca\u65ad\u548c\u9884\u9632\u9519\u8bef\u7684\u65b9\u6cd5\uff0c\u4ee5\u4f7f\u7a0b\u5e8f\u66f4\u52a0\u5065\u58ee\u548c\u7a33\u5b9a\u3002<\/p>\n
\u8d5b\u8fea\u7f51\u4e13\u7a3f\u5730\u5740\uff1ahttp:\/\/news.ccidnet.com\/art\/32859\/20100708\/2109237_1.html<\/a><\/p>\n
\u4f5c\u8005: \u4ed8\u6d77\u519b
\n  
\u7248\u6743\uff1a\u672c\u6587\u7248\u6743\u5f52\u4f5c\u8005\u6240\u6709<\/p>\n
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\u4e2a\u4eba\u7f51\u7ad9: http:\/\/txj.shell.tor.hu\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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