string(230) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%89%AF%E8%AF%8D%E4%BF%AE%E9%A5%B0%E5%89%AF%E8%AF%8D%E4%B8%BE%E4%BE%8B%E5%AD%90 => Received HTTP code 403 from proxy after CONNECT"
副词修饰副词举例子
