string(236) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%AD%E5%9B%BD31%E7%9C%81%E4%BA%BA%E5%9D%87gdp%E6%8E%92%E5%90%8D => Failed to connect to 101.89.159.206 port 38087: Connection refused"
中国31省人均gdp排名
