#include<stdio.h>
void filewrite(FILE *fp,const int num)
{
	int c;
	printf("開(kāi)始記錄，$字符結(jié)束。\n");
	printf("------------------------------------------------------------------\n");
    while((c=getchar())!='$')
	{
		c=c+num;
		putc(c,fp);
	}
}