string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%85%AC%E4%BC%97%E5%8F%B7%E6%8A%95%E7%A8%BF%E5%B9%B3%E5%8F%B0%E6%96%B0%E6%89%8B => Failed to connect to 14.18.117.71 port 38164: Connection refused"
公众号投稿平台新手
