string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%81%AD%E9%81%87%E8%BF%87%E5%88%BA%E6%9D%80%E7%9A%84%E7%BE%8E%E5%9B%BD%E6%80%BB%E7%BB%9F => Failed to connect to 101.89.117.144 port 38017: Connection refused"
遭遇过刺杀的美国总统
