进一步提高能力素质网!
string(249) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%BF%9B%E4%B8%80%E6%AD%A5%E6%8F%90%E9%AB%98%E8%83%BD%E5%8A%9B%E7%B4%A0%E8%B4%A8 => Failed to connect to 101.89.159.206 port 38075: Connection refused"
进一步提高能力素质网!