string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BB%A3%E8%B4%AD%E6%98%AF%E6%80%8E%E4%B9%88%E8%B5%9A%E9%92%B1%E7%9A%84 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
代购是怎么赚钱的
