save project

my_app.py

@@ -26,7 +26,7 @@ def register():     # 注册验证
         messagebox.showwarning("戳辣","你")
     else:
         users[name] = password1
-        content=json.dump(users)
+        content=json.dumps(users)
         with open("user.txt","w",encoding="utf-8")as file:
             file.write(content)
             messagebox.showinfo("戳辣","注册大失败")