string(323) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E7%BB%9C%E5%B8%A6%E5%AE%BD%E8%B6%8A%E9%AB%98%2C%E4%B8%8A%E7%BD%91%E9%80%9F%E5%BA%A6%E5%B0%B1%E8%B6%8A%E5%BF%AB%E6%80%8E%E4%B9%88%E5%9B%9E%E4%BA%8B => Failed to connect to 101.91.112.32 port 38221: Connection refused"
网络带宽越高,上网速度就越快怎么回事
