加密解密的时候如果只传一个key值那么向量值默认跟key值一样c#中实现加密和解密的类Des.csusingSystem;usingSystem.IO;usingSystem.Security.Cryptography;usingSystem.Text;namespaceAnk.Class{classDes{////加解密密钥//privatestaticstringskey="12345678";////初始化向量//privatestaticbyte[]DESIV={0x12,0x34,0x56,0x78,0x90,0xAB,0xCD,0xEF};#regionDESEnCodeDES加密