根据文档，我应该将这两个值括在方括号内，但这似乎不起作用。
我的代码如下：

$params = @{
    body = @{
        "jsonrpc"= "2.0"
        "method"= "item.get"
        "params"= @{
            "host"= $HostName
            "search"= @{
            "key_"= "[vm.memory.size[total],system.cpu.num]"
            }
            "searchByAny"= "true"
        }
            "id"= 50
            "auth"="e57c8231e4d8f0f1c8d3ea2209299e65864a8c394458f670a9bc35583c19e129"
        } | ConvertTo-Json
        uri = "$baseurl/api_jsonrpc.php"
        headers = @{"Content-Type" = "application/json"}
        method = "Post"
    }
$HostDetails = $($_.HostName)

$result = Invoke-WebRequest @params -useBasicParsing
$rawdata = $result | ConvertFrom-Json
#$rawdata.result

但它不起作用，它产生了以下结果-

StatusCode        : 200
StatusDescription : OK
Content           : {"jsonrpc":"2.0","result":[],"id":50}
RawContent        : HTTP/1.1 200 OK
                    Access-Control-Allow-Origin: *
                    Access-Control-Allow-Headers: Content-Type
                    Access-Control-Allow-Methods: POST
                    Access-Control-Max-Age: 1000
                    Strict-Transport-Security: max-age=315360...
Forms             :
Headers           : {[Access-Control-Allow-Origin, *], [Access-Control-Allow-Headers, Content-Type], [Access-Control-Allow-Methods,
                    POST], [Access-Control-Max-Age, 1000]...}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        :
RawContentLength  : 37

我试着将行“key_”=....改为我上面所述的各种变体，但似乎没有产生任何结果，有些抛出错误。