Powershell 中 catch webexception

powershell

 

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try{         $resp = $r.GetResponse()         $reqstream = $resp.GetResponseStream()         $sr = new-object System.IO.StreamReader $reqstream         $sr.ReadToEnd()     }     catch [Net.WebException]     {         if($_.Exception.Response -eq $null)         {             return 100         }                    $sr = New-Object System.IO.StreamReader($_.Exception.Response.GetResponseStream())         $errorcode = [int] ($_.Exception.Response.StatusCode)         Throw "Error Code : $errorcode, "  + $sr.ReadToEnd()         }

　　.net

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var resp = new HttpResponseMessage(HttpStatusCode.BadRequest)                         {                             Content = new StringContent("xxxx!"),                             ReasonPhrase = "xxxx!"                         };                           throw new HttpResponseException(resp);