对文字简单的加密解密
1 /** 2 * 测试byte 3 */ 4 public void test3(){ 5 String str = "菲吓鳞"; 6 byte[] b = new byte[1024]; 7 b = str.getBytes(); 8 byte[] fs = new byte[1024]; 9 for (int i = 0; i < b.length; i++) { 10 byte f = b[i]; 11 if(f == 255){ 12 f = 0; 13 }else{ 14 fs[i] += --f; 15 } 16 } 17 System.out.println("加密后:" + new String(fs)); 18 19 byte[] yb = new byte[1024]; 20 for (int i = 0; i < fs.length; i++) { 21 byte f = fs[i]; 22 if(f == 0){ 23 f=(byte) 255; 24 }else{ 25 yb[i] += ++f; 26 } 27 } 28 System.out.println("解密后:" + new String(yb)); 29 }
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