def check_permission(func): '''演示嵌套函数定义及使用''' def wrapper(*args,**kwargs): if kwargs.get('username') != 'admin': raise Exception('Sorry,You are not allowed') return func(*args,**kwargs) return wrapper class ReadWriteFile(object): # 把函数作为装饰器使用 @check_permission def read(self,username,filename): return open(filename,'r').read() def write(self,username,filename,content): open(filename,'a+').write(content) # 作为普通函数使用 write = check_permission(write) t = ReadWriteFile() print(t.read(username='admin',filename=r'c:UsersPGIDYSQDesktop1111111e.gen')) print("*"*60) t.write(username='admin',filename=r'c:UsersPGIDYSQDesktop1111111e.gen',content='cvname') print("-"*60)
相关资料:https://www.cnblogs.com/lyox/p/8671098.html