string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%9D%E7%BA%A7%E4%BC%9A%E8%AE%A1%E8%80%83%E8%AF%95%E6%9C%89%E5%AE%9E%E6%93%8D%E8%80%83%E8%AF%95%E5%98%9B => Failed to connect to 101.89.143.195 port 38109: Connection refused"
初级会计考试有实操考试嘛
