완료_1
Merge branch 'master' of https://github.com/Minsub/EducationSystem.git
Merge branch 'master' of https://github.com/Minsub/EducationSystem.git
null값 오류, radio버튼 수정
Merge branch 'master' of https://github.com/Minsub/EducationSystem.git
Merge branch 'master' of https://github.com/Minsub/EducationSystem.git
Merge branch 'master' of https://github.com/Minsub/EducationSystem.git
radio button, UserInfo_lecture로 넘어가는 파라미터 수정