string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E7%9A%84%E6%A1%88%E4%BE%8B%E8%B0%81%E8%AE%B2%E7%9A%84%E5%A5%BD => Failed to connect to 101.91.112.32 port 38221: Connection refused"
一造的案例谁讲的好
