What is the Domain Driven Design? 什么是领域驱动设计
Domain-driven design (DDD) is an approach to software development for complex needs by connecting the implementation to an evolving model;
领域驱动设计（DDD）是一种应对复杂需求的软件开发方法，它将实现与不断演化的模型联系起来。
DDD is suitable for complex domains and large-scale applications rather than simple CRUD applications. It focuses on the core domain logic rather than the infrastructure details.
DDD适用于复杂领域和大型应用，而不是简单的CRUD应用。它专注于核心领域逻辑，而不是基础设施的细节。
It helps to build a flexible, modular and maintainable code base.
它有助于建立一个灵活的、模块化的且可维护的代码库。