介绍一组自己封装的的计时函数。使用该组函数可以简化测试工作，从而把更多的精力放在主要工作上，不需要过多地维护计时代码，仅仅使用两个宏就可以方便、精确地实现多个模块、多方式的时间性能测试，并且计时结果以一个文本文件独立保存，清晰直观。-Describes a group of their own package of the timing function. Using the set of functions can simplify the testing work, which put more focus on the main work, does not require too much maintenance time code, and only use two macros can be convenient and accurate multiple modules, multi-mode time performance testing, and the timing results to a text file to preserve the clear and intuitive.