string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%AF%B4%E4%B8%80%E8%AF%B4%E9%9B%A8%E6%9D%A5%E6%98%AF%E5%A6%82%E4%BD%95%E9%80%83%E8%84%B1%E7%9A%84 => Received HTTP code 403 from proxy after CONNECT"
说一说雨来是如何逃脱的
