本书始终强调一种观点：程序问题并没有需要记住的标准答案。由于分析问题时的不同

考虑，设计过程中的不同决定或选择，人们对同一问题常会得到许多合理而正确的不同程序。-The book has always stressed a point of view: the program does not need to remember that the standard answer. Analyzing the issue of different considerations, different decisions or choices in the design process, the same question often reasonable and correct the different procedures.