string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%91%E4%BA%AC%E4%B8%9C%E5%BF%AB%E8%BF%98%E6%98%AF%E9%A1%BA%E4%B8%B0%E5%BF%AB => Failed to connect to 101.89.159.206 port 38187: Connection refused"
发京东快还是顺丰快
