string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AF%B9%E5%95%8A%E7%BD%91%E7%9A%84%E6%B3%A8%E4%BC%9A%E6%AF%94%E4%B8%9C%E5%A5%A5%E8%B4%B5%E4%BA%86%E4%B8%80%E5%80%8D => Failed to connect to 14.18.117.71 port 38220: Connection refused"
对啊网的注会比东奥贵了一倍
