[{"title":"( 2 个子文件 1KB ) java代码-若单码替代密码的替代关系(密钥)如下:\r\n\r\n明文:abcdefghijklmnopqrstuvwxyz\r\n\r\n密文:mnbvcxzasdfghjklpoiuytrewq\r\n\r\n1)请加密报文“This is an easy problem”;\r\n\r\n2)解密报文“rmij'u uamu xyj”。","children":[{"title":"main.java <span style='color:#111;'> 1.42KB </span>","children":null,"spread":false},{"title":"README.txt <span style='color:#111;'> 651B </span>","children":null,"spread":false}],"spread":true}]