| #include "stdio.h" #include "time.h" void main() { time_t lt; /*define a longint time varible*/ lt=time(NULL);/*system time and date*/ printf(ctime(<)); /*english format output*/ printf(asctime(localtime(<)));/*tranfer to tm*/ printf(asctime(gmtime(<))); /*tranfer to Greenwich time*/ } |
| /*calculate time*/ #include "time.h" #include "stdio.h" main() { time_t start,end; int i; start=time(NULL); for(i=0;i<3000;i++) { printf("\1\1\1\1\1\1\1\1\1\1\n"); } end=time(NULL); printf("\1: The different is %6.3f\n",difftime(end,start)); } |
| /*calculate time*/ #include "time.h" #include "stdio.h" main() { clock_t start,end; int i; double var; start=clock(); for(i=0;i<10000;i++) { printf("\1\1\1\1\1\1\1\1\1\1\n"); } end=clock(); printf("\1: The different is %6.3f\n",(double)(end-start)); } |
|
#include "time.h" |