string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%AF%95%E4%B8%9A%E6%97%B6%E6%A0%A1%E5%9B%AD%E5%8D%A1%E9%87%8C%E7%9A%84%E9%92%B1 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
毕业时校园卡里的钱
