介绍工作流的基本原理、历史等基本资料。 介绍工作流的基本原理、历史等基本资料。 -Introduced the basic principles of the workflow, history and other basic information. Introduced the basic principles of the workflow, history and other basic information. Introduced the basic principles of the workflow, history and other basic information. Introduced the basic principles of the workflow, history and other basic information.