目录一、clock()函数——毫妙级二、GetTickCount()函数（精度16ms左右）——毫妙级三、高精度时控函数QueryPerformanceCounter()——微妙级四、高精度计时chrono函数——纳
I\'m not thrilled with the argument-passing architecture I\'m evolving for the (many) Perl scripts that have been developed for some scripts that call various Hadoop MapReduce jobs.
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