修改 选择排课的班级  页面的显示

Signed-off-by: allen <wtljiayou@163.com>
Merge remote-tracking branch 'remotes/Michael/master'
提交classes 表插入ejxkdm

Signed-off-by: allen <wtljiayou@163.com>
Merge pull request #14 from allenwtl/master

修改 选择排课的班级 页面的显示