精确到微秒——计算函数执行时间

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at 2010-11-19 19:08:50

original http://my.oschina.net/xiangxw/blog/10124

include

include

include

int main() { struct timeval tpstart,tpend; float timeuse; int i; gettimeofday(&tpstart,NULL); scanf("%d", &i); /*这里计算的是scanf函数的执行时间，就是从函数执行到命令行输入回车的时...