JDK：1.40以上说明：文件加密加密方法：三重DES加密加密密过程：对选中的文件加密后在同文件夹下生成一个增加了".tdes" -JDK: 1.40 Descr iption: file encryption encryption: Triple DES encryption to encrypt the secret process: one generated in the same folder as the selected file encryption increased th