string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8F%8D%E6%80%9D%E8%87%AA%E5%B7%B1%E5%B2%97%E4%BD%8D%E4%B8%AD%E7%9A%84%E4%B8%8D%E8%B6%B3%E5%92%8C%E6%94%B9%E8%BF%9B => Failed to connect to 101.89.117.144 port 38005: Connection refused"
反思自己岗位中的不足和改进
