Revert "Revert "Revert "为每个同学建立个人文件夹"""

This reverts commit 9c3049abd22016bf1af0ca44df503b86f3716f7a.
Revert "Revert "Revert "Revert "为每个同学建立个人文件夹""""

This reverts commit da755dbd03061687180fde1e4897972485326c41.