string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E8%91%B5%E8%8A%B1%E5%AE%9D%E5%85%B8%E6%A1%88%E4%BE%8B => Failed to connect to 61.171.74.35 port 38041: Connection refused"
一建葵花宝典案例
