string(287) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%9D%A2%E8%AF%95%E5%B8%B8%E9%97%AE%E7%9A%8410%E4%B8%AA%E9%97%AE%E9%A2%98%E6%80%8E%E4%B9%88%E8%A7%A3%E7%AD%94%E5%A5%BD => Failed to connect to 101.89.117.144 port 38208: Connection refused"
面试常问的10个问题怎么解答好
