c language system time

#include <stdio.h> 
#include <time.h> 
int main()
{
    
     
time_t rawtime; 
struct tm * timeinfo; 
time ( &rawtime ); 
timeinfo = localtime ( &rawtime ); 
printf ( "当前系统时间: %s", asctime (timeinfo) ); 
return 0;
}