我已经在powershell脚本中使用Invoke-RestMethod构建了一个PUT请求。
此请求类似于：

# Main global var
$securePassword = ConvertTo-SecureString -String $pat -AsPlainText
$credential = [PSCredential]::new($username, $securePassword)
$organization = "myorganization"
$project = "myproject"
$username = "username"
$pat = "myRandomPatFromAzureDevOps"
# AZDO build env var
$buildNumber = "test1.0"
# AZDO Wiki global vars
$page = "Release-Notes-$buildNumber"

$Body = [PsCustomObject]@{ 
    "content" = "$results"
} | ConvertTo-Json 

$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Content-Type", "application/json")

Invoke-RestMethod -Uri "https://dev.azure.com/$organization/$project/_apis/wiki/wikis/MyWiki.wiki/pages?path=$page&api-version=7.0" -Method 'PUT' -Authentication Basic -Credential $credential -Headers $headers -Body $Body

正如我们在azure devops rest API上看到的，为了在wiki存储库here中添加内容，为了更新wiki，我必须在RequestBody中给予一个名为content的字符串格式参数。
下面是传递给content参数的var $results的内容：

|Id|AreaPath|IterationPath|WorkItemType|State|Title|CloseDate|
|---------|---------------|--------------------|-------------------|------------|------------|--------------------------------|
|8888|Parts Unlimited Team|Parts Unlimited Sprint 2023-03|Bug|Closed|Parts Unlimited Sprint log security password|03-03-2023 13:31:37|
|9999|Parts Unlimited Team|Parts Unlimited Sprint 2023-03|Task|Closed|Parts Unlimited SprintAutomatisation APIs |03-01-2023 08:32:31|

正如你所看到的，我试图将MarkDown表作为字符串传递，为了将结果格式化，我找到并使用了一个名为ConvertTo-MarkDownTable的函数：

function ConvertTo-MarkDownTable {
    [CmdletBinding()] param(
        [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)] 
        $InputObject
    )
    Begin { 
        $headersDone = $false
        $pattern = '(?<!\\)\|'  # escape every '|' unless already escaped
    }
    Process {
        if (!$headersDone) {
            $headersDone = $true
            # output the header line and below that a dashed line
            # -replace '(?<!\\)\|', '\|' escapes every '|' unless already escaped
            "`n|{0}|" -f (($_.PSObject.Properties.Name -replace $pattern, '\|') -join '|')
            "`n|{0}|" -f (($_.PSObject.Properties.Name -replace '.', '-') -join '|')
        }
        "`n|{0}|" -f (($_.PsObject.Properties.Value -replace $pattern, '\|') -join '|')
    }
}

$results中的初始数据是我从Azure DevOps Rest API的GET方法中恢复的值。当我看到$results的类型时，我看到的是：

# $results.GetType()
IsPublic IsSerial Name                                     BaseType
-------- -------- ----                                     --------
True     True     Object[]                                 System.Array

现在，当我运行Invoke-RestMethod时，在bodycontent参数中发送注解：

Invoke-RestMethod -Uri "https://dev.azure.com/$organization/$project/_apis/wiki/wikis/MyWiki.wiki/pages?path=$page&api-version=7.0" -Method 'PUT' -Authentication Basic -Credential $credential -Headers $headers -Body $Body

Output :
path        : /path-to-push-content
order       : 1
gitItemPath : /path%2Dto%2Dcontent.md
subPages    : {}
url         : https://dev.azure.com/myorganization/id-of-event-etag/_apis/wiki/wikis/fid-of-wiki-request/pages
              /%2Fpath-to-push-content
remoteUrl   : https://dev.azure.com/myorganization/id-of-event-etag/_wiki/wikis/fid-of-wiki-request?pagePath=%
              2Fpath-to-push-content
id          : randomId
content     :

但是我已经用POSTMAN测试了这个请求，一切都运行良好，这就是请求：

如您所见，结果被正确地解析和解释。
这是Azure devops wiki上的上传内容：

为什么我的PUT方法请求不能像POSTMAN那样在powershell脚本中发送内容？