string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E9%B8%AD%E8%82%89%E6%AF%94%E9%B8%A1%E8%82%89%E5%B0%91 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
为什么鸭肉比鸡肉少
