Web 开发的分散性和交互性，决定了 Web 开发必须遵从一定的开发规范和技术约定，只有每个开发人员都按照一个共同的规范去设计、沟通、开发、测试、部署，才能保证整个开发团队协调一致的工作，从而提高开发工作效率，提升工程项目质量。-Web Development decentralized and interactive, Web development must be determined that must comply with the development of normative and technical agreement, only for each developer in accordance with a common specification to design, communication, development, testing, deployment, can we ensure that the entire development team coordinated, so as to enhance development efficiency and improve the quality of engineering projects.