package com.heima.test;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class Test1 {
/**
* @param args
* @throws IOException
* 将写出的字节异或上一个数,这个数就是密钥,解密的时候再次异或就可以了
*/
public static void main(String[] args) throws IOException {
BufferedInputStream bis = new BufferedInputStream(new FileInputStream("copy.jpg"));
BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream("copy2.jpg"));
int b;
while((b = bis.read()) != -1) {
bos.write(b ^ 123);
}
bis.close();
bos.close();
}
}
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