string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%B9%BF%E5%91%8A%E8%AF%8D%E4%B8%AD%E7%9A%84%E9%94%99%E5%88%AB%E5%AD%97%E8%A6%81%E6%94%B9%E6%AD%A3%E9%94%99%E5%88%AB%E5%AD%97 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
广告词中的错别字要改正错别字
