string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%A7%E5%AD%A6%E9%87%8C%E9%9D%A2%E7%9A%84%E6%A0%A1%E5%9B%AD%E5%8D%A1%E6%AF%95%E4%B8%9A%E4%BA%86%E4%B9%8B%E5%90%8E%E8%83%BD%E4%B8%8D%E8%83%BD%E7%94%A8 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
大学里面的校园卡毕业了之后能不能用
