一、简单的依赖方法

import datetime#依赖class Project:    def __init__(self, name, team, start_date):        self.name = name        self.team = team        self.start_date = start_date    def __repr__(self):        return f'
     
      'class Developer:    def __init__(self, name, skills):        self.name = name        self.skills = skills    def __repr__(self):        return f'
      
       '    def develop_project(self, project):        print(f'{self.name}正在参与开发项目:{project}')if __name__ == "__main__":    d = Developer('Tom', ['Python', 'SQL', 'Flask'])    print(d)    proj = Project('OA', 'DEV2', datetime.date(2018, 3, 7))    d.develop_project(proj)    #依赖 Project的类