string(311) "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%E7%9A%84%E9%A1%B9%E7%9B%AE%E5%8F%AF%E4%BB%A5%E5%86%99%E6%88%90%E8%AE%BA%E6%96%87%E5%8F%91%E8%A1%A8%E5%90%97 => Failed to connect to 101.89.120.29 port 38231: Connection refused"
自己创业的项目可以写成论文发表吗
