Question

在ISE中运行此代码。

Push-Location -Path $(Split-Path -Parent $myInvocation.MyCommand.Path)
Get-Location
$file = '.\ex.txt'
$reader = New-Object System.IO.StreamReader($file)

在Console中运行相同的代码失败。我错过了什么？

PS H:\src\powershell> .\ccount.ps1

Path
----
H:\src\powershell
New-Object : Exception calling ".ctor" with "1" argument(s): "Could not find file
'C:\src\powershell\ex.txt'."
At H:\src\powershell\ccount.ps1:9 char:11
+ $reader = New-Object System.IO.StreamReader($file)
+           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [New-Object], MethodInvocationException
    + FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands
   .NewObjectCommand

这与建议的重复

有何不同

另一个问题/答案确实解释了PowerShell在这种情况下失败的原因。但是，它没有提供任何关于为何在ISE中有效的提示。这似乎是Console和ISE主机之间的显着差异。

我在Windows 7 Enterprise SP1上运行PSVersion 5.0.10586.117。

Answer 1

function drawChart(data) {
    var ctx = document.getElementById('myChart').getContext('2d');
    var myChart = new Chart(ctx, {
        type: 'line',
        data: {
            labels: [],
            datasets: [{
                label: 'FiveRP',
                data: [],
                backgroundColor: "rgba(75,192,192,0.4)",
                fill: false,
                lineTension: 0.1,
                borderColor: "rgba(75,192,192,1)",
                borderCapStyle: 'butt'
            }, {
                label: 'GTALife',
                data: [],
                backgroundColor: "rgba(148,0,211,0.4)",
                fill: false,
                lineTension: 0.1,
                borderColor: "rgba(148,0,211,1)",
                borderCapStyle: 'butt'
            }, {
                label: 'GermanV',
                data: [],
                backgroundColor: "rgba(255,165,0,0.4)",
                fill: false,
                lineTension: 0.1,
                borderColor: "rgba(255,165,0,1)",
                borderCapStyle: 'butt'
            }]
        }
    });
}

Answer 2

只需使用：

Push-Location $PSScriptRoot

只要您使用最新的PowerShell版本（v3 +），它就会在两种情况下都有效。

Answer 3

答案似乎是Push-Location不会更改控制台主机中的[Environment] :: CurrentDirectory。确实会在ISE中更改它。

PS 09:02 \\SRV1\SH1\home\pwatson2 H:\
>Push-Location H:\src\t

PS 09:02 \\SRV1\SH1\home\pwatson2 H:\src\t
>Get-Location

Path
----
H:\src\t

PS 09:02 \\SRV1\SH1\home\pwatson2 H:\src\t

>Write-Host ([Environment]::CurrentDirectory)
C:\Windows\System32\WindowsPowerShell\v1.0

当前目录显然不是当前目录

3 个答案: