说明：  重点讨论了用C语言进行DSP软件设计时的一些常用的编程优化策略,旨在实现代码的高效和运算速度的提高。详细阐述了这些优化策略的特点、应用规则和性能分析。这些策略同样适用于C++开发环境。同时给出了程序设 计实例。
(Focused on the C language for DSP software design to some of the commonly used programming optimization strategy, aimed at achieving efficient code and computing speed improvement. Elaborated on the characteristics of these optimization strategies, application rules and performance analysis. The same strategy applies to C++ development environment. Also gives programming examples.)