string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8B%BC%E5%A4%9A%E5%A4%9A%E5%90%B8%E5%BC%95%E5%AE%A2%E6%88%B7%E7%9A%84%E7%AD%96%E7%95%A5 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
拼多多吸引客户的策略
