string(197) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=f1%E5%8A%A0%E9%80%9F%E5%BA%A6%E5%87%A0%E4%B8%AAg => Received HTTP code 403 from proxy after CONNECT"
f1加速度几个g网!