string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%90%84%E5%9B%BD%E7%9A%84%E5%9B%BD%E6%97%97%E5%8F%8A%E8%8B%B1%E6%96%87%E5%90%8D%E7%A7%B0 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
各国的国旗及英文名称
