本文讨论了动态规划这一思想的核心内容和其基本特点，探讨了动态规划思想的适用范围，动态规划子问题空间和递推关系式确立的一般思路。-This paper discusses the dynamic planning this thought core content and its basic characteristics, this paper discusses the dynamic planning idea, the applicable scope of the dynamic programming problem space and son recursive formula of the establishment of general thoughts.