string(260) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8E%B0%E5%9C%A8%E6%83%B3%E5%88%9B%E4%B8%9A%2C%E6%9C%89%E5%93%AA%E4%BA%9B%E5%BB%BA%E8%AE%AE => Failed to connect to 101.91.112.32 port 38221: Connection refused"
现在想创业,有哪些建议
