相当重要的“加载形式化研究”！ Finally,since ADTs are mathematical objects,their meaning can be formally specified.Based on these specifications,it is then possible to verify that a given implementation of an ADT is correct and agrees with the specification. 狭义的程序设计中难得一见的科学内涵！相当重要的“加载形式化研究”！ 狭义的程序设计中难得一见的科学内涵！