save project

read_csv.py

-"""读取csv文件""""
+import tkinter
\ No newline at end of file
+def login_to_reg():
+    app_login.root.destroy()
+    global app_reg
+    app_reg=my_register()
+    app_reg.show()
+def reg_to_login():
+    app_reg.root destroy()
+    global app_login
+    app_login=my_login()
+    app_login.show()
+
+    
\ No newline at end of file