myc1.c

C精彩编程百例源码

#include <stdio.h>
main()
{
FILE *fp; int i=20,j=30,k,n;
fp=fopen("d1.txt","w");
fprintf(fp,"%d\n",i);fprintf(fp,"%d\n",j);
fclose(fp);
fp=fopen("d1.txt","r");
fscanf(fp,"%d%d",&k,&n);printf("%d%d\n",k,n);
fclose(fp);
}