string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BB%99%E9%A2%86%E5%AF%BC%E5%86%99%E6%A3%80%E6%9F%A5%E6%89%BF%E8%AE%A4%E9%94%99%E8%AF%AF => Received HTTP code 403 from proxy after CONNECT"
给领导写检查承认错误
