string(234) "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%E8%A6%81%E6%94%B6%E8%B4%B9%E5%90%97300 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
公众号要收费吗300
