linux系统下的对称加解密算法的des的c代码实现，代码实现了灵活的和强大封装，可以直接调用封装好接口，还可以移植到window系统下。-Linux under the system of symmetric encryption algorithm des c code, the code implements the flexible and powerful packaging, can be directly encapsulated interface, can also be transplanted to the window system.