新功能: 添加后端代码

backend/del_migrations.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+import os
+
+exclude = ["venv"] # 需要排除的文件目录
+for root, dirs, files in os.walk('.'):
+    dirs[:] = [d for d in set(dirs) - set(exclude)]
+    if 'migrations' in dirs:
+        dir = dirs[dirs.index('migrations')]
+        for root_j, dirs_j, files_j in os.walk(os.path.join(root, dir)):
+            for file_k in files_j:
+                if file_k != '__init__.py':
+                    dst_file = os.path.join(root_j, file_k)
+                    print('删除文件>>> ', dst_file)
+                    os.remove(dst_file)