程序设计C++

#include #include #include void main( void ) { struct tm *newtime; char am_pm[] = "AM"; time_t long_time; time( &long_time ); /* Get time as long integer. */ newtime = localtime( &long_time ); /* Convert to local time. */ if( newtime->tm_hour > 12 ) /* Set up extension. */ strcpy( am_pm, "PM" ); if( newtime->tm_hour > 12 ) /* Convert from 24-hour */ newtime->tm_hour -= 12; /* to 12-hour clock. */ if( newtime->tm_hour == 0 ) /*Set hour to 12 if midnight. */ newtime->tm_hour = 12; printf( "%.19s %s\n", asctime( newtime ), am_pm ); }