string(257) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BA%AC%E4%B8%9C%E7%9A%84%E5%AE%A3%E4%BC%A0%E6%96%B9%E5%BC%8F%E6%9C%89%E5%87%A0%E7%A7%8D => Failed to connect to 101.91.112.32 port 38195: Connection refused"
京东的宣传方式有几种
