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__DATE__
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__FILE__
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       ¶ÔÓÚ__FILE__£¬__LINE__£¬__func__ÕâÑùµÄºê£¬ÔÚµ÷ÊÔ³ÌÐòʱÊǺÜÓÐÓõģ¬ÒòΪÄã¿ÉÒÔºÜÈÝÒ×µÄÖªµÀ³ÌÐòÔËÐе½ÁËÄĸöÎļþµÄÄÇÒ»ÐУ¬ÊÇÄĸöº¯Êý¡£
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#include <stdio.h>
#include <stdlib.h>
void why_me();
int main()
{
    printf( "The file is %s.\n", __FILE__ );
    printf( "The date is %s.\n", __DATE__ );
    printf( "The time is %s.\n", __TIME__ );
    printf( "This is line %d.\n", __LINE__ );
    printf( "This function is %s.\n", __func__ );
    why_me();
    return 0;
}
void why_me()
{
    printf( "This function is %s\n", __func__ );
    printf( "The file is %s.\n", __FILE__ );
    printf( "This is line %d.\n", __LINE__ );
}


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