string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%AF%E4%BB%A5%E5%81%9A%E5%9B%A2%E8%B4%AD%E7%9A%84%E6%9C%89%E4%BB%80%E4%B9%88%E5%B9%B3%E5%8F%B0 => Received HTTP code 403 from proxy after CONNECT"
可以做团购的有什么平台
