cmd命令start powershell下载文件时遇到异常，请求大神解答

[吃着油条唱歌]

$client = new-object System.Net.WebClient
PS C:\Users\lenovo> $client.DownloadFile('http://file3.data.weipan.cn/24452349/dd840a3cde6538af377e98293e19b756289a22eb?
ip=1532092985,42.122.250.164&ssig=WOaUZWSubp&Expires=1532093585&KID=sae,l30zoo1wmz&fn=C%E9%99%B7%E9%98%B1%E4%B8%8E%E7%BC
%BA%E9%99%B7%28%E4%B8%AD%E6%96%87%E7%89%88%E6%B8%85%E6%99%B0%E7%89%88%29.pdf&se_ip_debug=42.122.250.164&from=1221134','D
:\a1\C陷阱与缺陷(中文版清晰版) (1).pdf')
使用“2”个参数调用“DownloadFile”时发生异常:“在 WebClient 请求期间发生异常。”
所在位置 行:1 字符: 1
+ $client.DownloadFile('http://file3.data.weipan.cn/24452349/dd840a3cde ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : WebException