二十五岁时我们都一样愚蠢、多愁善感，喜欢故弄玄虚，可如果不那样的话，五十岁时也就不会如此明智。
标题：C库函数 - clock()
C库函数 - clock()
#include <time.h> #include <stdio.h> int main () { clock_t start_t, end_t, total_t; int i; start_t = clock(); printf("Starting of the program, start_t = %ld\n", start_t); printf("Going to scan a big loop, start_t = %ld\n", start_t); for(i=0; i< 10000000; i++) { } end_t = clock(); printf("End of the big loop, end_t = %ld\n", end_t); total_t = (double)(end_t - start_t) / CLOCKS_PER_SEC; printf("Total time taken by CPU: %f\n", total_t ); printf("Exiting of the program...\n"); return(0); }
