text: from flask_script import Manager
  from flask_migrate import Migrate, MigrateCommand
  from app import app
  from exts import db
  from models import User, Question, Answer
  
  
  manager = Manager(app)
  
  # 使用Migrate绑定app和db
  migrate = Migrate(app, db)
  
  # 添加迁移脚本的命令到manager中
  manager.add_command('db', MigrateCommand)
  
  if __name__ == '__main__':
      manager.run()
  