useless commit(Do not sych)
Revert 90d6568..c254d8c

This rolls back to commit 90d65680f40207e2db55afb67342a4765e0ec0d9.
useless
Revert 2bbcca6..b18bb56

This rolls back to commit 2bbcca6476a43463fd7621b9a51eb104789c3210.
UI detail revised and basic functions completed

By MIngheng