string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%B9%E5%8F%98%E8%87%AA%E5%B7%B1%E5%86%99%E4%B8%80%E7%AF%87%E4%BD%9C%E6%96%87 => Failed to connect to 125.88.227.171 port 38114: Connection refused"
改变自己写一篇作文
