string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%87%AA%E5%B7%B1%E5%88%9B%E4%B8%9A%E5%8F%AF%E4%BB%A5%E5%B9%B2%E5%95%A5 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
自己创业可以干啥
