C语言的代码：
#include <stdio.h>
void xor_(FILE *fp,FILE *fl,char *m)
{
char k[64];
int i;
while(1){
if(fread(&k,1,64,fp)>0){
for(i=0;i<64;i++){
k[i]=k[i]^m[i];
}
fwrite(&k,1,64,fl);
}
else{break;}
}
fclose(fp);
fclose(fl);
}
void z_xor(char *k,char *m,int n){
int i;
for(i=0;i<n;i++){
k[i]=k[i]^m[i];
}
}
char m[64];
char ou[20];
char in[20];
int i;
FILE *fp;
FILE *fl;
FILE *fm;
int main(void){
printf("文件1:");
scanf("%s",&in);
printf("文件2:");
scanf("%s",&ou);
fp=fopen(in,"rb");
fl=fopen(ou,"wb");
fm=fopen("密钥.txt","rb");
fread(&m,1,64,fm);
xor_(fp,fl,m);
printf("\a");
return(1);
}

把 *fp *fm 的内容改为手动输入，*fl 改为在网页输出