简单的本地缓存 使用很简单 PersonCache *person = [[PersonCache alloc] init]; person.dog.age = 1; person.dog.dogType = @"拉布拉多"; person.dog.name = @"陈逗比"; person.book.bookName = @"我的童年"; person.book.price = 11.2; [person writeToFile]; PersonCache *cachePerson = [PersonCache createObjectFromFile]; NSLog(@"%@ %@ %@", cachePerson.dog.name, cachePerson.dog.dogType, cachePerson.book.bookName);