string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8E%86%E7%95%8C%E5%A5%A5%E8%BF%90%E4%BC%9A%E4%B8%BB%E5%8A%9E%E5%9F%8E%E5%B8%82 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
历界奥运会主办城市
