string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%91%E6%8E%A7%E5%AE%9A%E7%A0%81%E7%8E%87%E5%92%8C%E5%8F%98%E7%A0%81%E7%8E%87%E5%93%AA%E4%B8%AA%E6%B8%85%E6%99%B0 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
监控定码率和变码率哪个清晰
