string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BB%99%E9%A2%86%E5%AF%BC%E7%9A%84%E5%BB%BA%E8%AE%AE10%E6%9D%A1%E7%AE%80%E7%9F%AD => Failed to connect to 14.18.117.71 port 38133: Connection refused"
给领导的建议10条简短
