string(285) "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%E4%B8%80%E8%88%AC%E4%B8%80%E4%B8%AA%E4%B8%9C%E8%A5%BF%E8%B5%9A%E5%A4%9A%E5%B0%91%E9%92%B1%E5%95%8A => Failed to connect to 101.89.143.195 port 38109: Connection refused"
代购一般一个东西赚多少钱啊
