string(328) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B3%A8%E5%86%8C%E4%B8%AA%E4%BD%93%E5%B7%A5%E5%95%86%E6%88%B7%E4%B8%8E%E6%B3%A8%E5%86%8C%E5%85%AC%E5%8F%B8%E7%9A%84%E4%BC%98%E5%8A%BF%E5%92%8C%E5%8A%A3%E5%8A%BF => Failed to connect to 14.18.117.71 port 38069: Connection refused"
注册个体工商户与注册公司的优势和劣势
