说明：  国密算法SM2, SM3, SM4的VC库文件, 只要在VC工程中添加头文件, 再包括LIB文件就可以了.注意LIB与两个DLL要一起放在VC编译生成的DEBUG及RELEASE目录下.内附测试工具,可以验证算法的正确性.
(To State secret algorithm SM2, SM3, SM4 VC library files, as long as the header file, and then add in the VC project including the LIB file can note the LIB with two DLL to put together a VC compiled DEBUG and RELEASE catalog of. enclosing the test tool to verify the correctness of the algorithm.)