Coding-rewind-usage

rewind-將檔案指標指向一開始的位置

等同於

fseek ( stream , 0L , SEEK_SET );
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#include
#include

int main()
{
FILE *fp=fopen("/home/diousk/test/aaa","r+");
char str[20];
fscanf(fp,"%s",str);
printf("\nthe content is %s\n",str);
rewind(fp);
fprintf(fp,"%d",atoi(str)+1);
fclose(fp);

return 0;
}

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