string(229) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=1000%E5%85%86%E5%AE%BD%E5%B8%A6%E5%8F%AA%E8%83%BD%E8%B7%91500 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
1000兆宽带只能跑500
