string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%9C%89%E6%97%B6%E9%97%B4%E5%8F%AF%E4%BB%A5%E5%B9%B2%E7%82%B9%E4%BB%80%E4%B9%88%E5%89%AF%E4%B8%9A%E5%A5%BD => Failed to connect to 125.88.227.171 port 38114: Connection refused"
有时间可以干点什么副业好
