添加点注释
#include<stdio.h>void jiami(FILE *fp,FILE *fp1)//加密，声明fp是指针指向FILE类型的对象
{
unsigned char c,c1;
while(fscanf(fp,"%c",&c)==1)//从文件读入数据
{
c1=c/16+c%16*16;
fprintf(fp1,"%c",c1);
}
fclose(fp);
fclose(fp1);
}
void jiemi(FILE *fp,FILE *fp1)//解密，声明fp是指针指向FILE类型的对象
{
jiami(fp,fp1);
}
int main()
{
int a,b;//定义
FILE *fp,*fp1,*fp2;
fp=fopen("0.cpp","r");//"r"表示的是以文本方式读文件0.cpp
fp1=fopen("jiami.txt","w");//"w"表示的是以文本形式写文件jiami
jiami(fp,fp1);
fp=fopen("jiami.txt","r");
fp1=fopen("jiemi.txt","w");
jiemi(fp,fp1);
printf("加密文件是：jiami.txt，解密文件是：jiemi.txt，请查看\n");
return 0;
}
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