string(275) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2%E4%B8%87%E5%B7%A6%E5%8F%B3%E5%BC%80%E4%BB%80%E4%B9%88%E5%BA%97%E5%90%88%E9%80%82%E5%91%A2%E7%9F%A5%E4%B9%8E => Failed to connect to 14.18.117.71 port 38041: Connection refused"
2万左右开什么店合适呢知乎
