string(252) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=inux%E6%8B%B7%E8%B4%9D%E6%96%87%E4%BB%B6%E5%88%B0%E5%8F%A6%E5%A4%96%E4%B8%80%E4%B8%AA%E7%9B%AE%E5%BD%95 => Received HTTP code 403 from proxy after CONNECT"
inux拷贝文件到另外一个目录
