string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%99%90%E5%88%B6%E8%87%AA%E7%94%B1%E5%87%A0%E5%B0%8F%E6%97%B6%E7%AE%97%E8%BF%9D%E6%B3%95 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
限制自由几小时算违法
