+++ get:/Homework/classComplete *string:hwid#作业id *classid#班级id <<< success { "ret": 0, "msg": "ok", "classid": "100014580208062147", "classname": "2014级一班（张明成）", "signature": [], "unsignature": [ "赵曼伊", "韩佳良", "贾淳然", "张靖雯", "宋凯" ], "title": "2016-4-28 化学作业", "finish_time": "2016-04-28" } <<< error { "ret": -1, "msg": "参数错误" } +++