string(312) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%BB%E6%98%AF%E5%BF%AB%E7%9D%A1%E7%9D%80%E4%BA%86%E8%84%91%E5%AD%90%E5%B0%B1%E4%BC%9A%E4%B8%80%E6%83%8A%E5%B0%B1%E6%B8%85%E9%86%92%E4%BA%86 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
总是快睡着了脑子就会一惊就清醒了
