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½¨ÁËÁ½¸öÔ´Îļþfred.ºÍbill.c.
´úÂëÈçÏÂ:
#include <stdio.h>
void fred(int arg)
{
printf(¡°fred: you passed %d\n¡±, arg);
}

#include <stdio.h>
void bill(char *arg)
{
printf(¡°bill: you passed %s\n¡±, arg);
}

È»ºóÖ´ÐÐ
gcc -c bill.c fred.c
ls *.o
½á¹ûºÍÊéÉÏÒ»Ñù.

ÊéÉÏÖ®ºóµÄ²½ÖèÊǽ¨Á¢Í·Îļþ,¸ø³öµÄ´úÂëÈçÏÂ:
/*
This is lib.h. It declares the functions fred and bill for users
*/
void bill(char *);
void fred(int);
Õâ¸ö²»ÖªµÀÔõôŪ,¾Í½¨Á˸öÎļþ½Ðlib.h,°ÑÁ½¸öÉùÃ÷д½øÈ¥ÁË,²»ÖªµÀ¶Ô²»¶Ô.

È»ºóµ÷ÓóÌÐò,Ô´ÎļþÃû×Ö½Ðprogram.c
#include ¡°lib.h¡±
int main()
{
bill(¡°Hello World¡±);
exit(0);
}

Ö´ÐÐcgcc -c program.cÖ¸ÁîµÄʱºò³ö´íÁË.

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