diff --git a/doc/张卫哲小米便签博客.docx b/doc/张卫哲小米便签博客.docx new file mode 100644 index 0000000..5498a1d Binary files /dev/null and b/doc/张卫哲小米便签博客.docx differ diff --git a/src/Contact.java b/src/data/Contact.java similarity index 100% rename from src/Contact.java rename to src/data/Contact.java diff --git a/src/Notes.java b/src/data/Notes.java similarity index 100% rename from src/Notes.java rename to src/data/Notes.java diff --git a/src/NotesDatabaseHelper.java b/src/data/NotesDatabaseHelper.java similarity index 100% rename from src/NotesDatabaseHelper.java rename to src/data/NotesDatabaseHelper.java diff --git a/src/NotesProvider.java b/src/data/NotesProvider.java similarity index 100% rename from src/NotesProvider.java rename to src/data/NotesProvider.java