string(284) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%AF%84%E8%AE%BA%E9%87%8C%E7%BB%8F%E5%B8%B8%E8%AF%B4%E7%9B%92%E5%AD%90%E6%98%AF%E4%BB%80%E4%B9%88%E6%84%8F%E6%80%9D => Failed to connect to 101.91.112.32 port 38221: Connection refused"
评论里经常说盒子是什么意思
