一个功能非常简单的在线考试系统，实现基本的登录验证和单选、多选等，题型仅有单选题和多选题，答题后会根据答案进行分数判断-A very simple online exam system, the basic login authentication and radio, multi-election and so on, only单选题and多选题questions, answer will be judged based on the answers to scores of