不使用LoadLibrary加载DLL，此方法可以加密DLL，运行动态解密，然后直接在内存中加载，或把DLL当资源放在EXE中，运行只在内存中解开，不需要外带d-Do not use LoadLibrary load the DLL, this method can be encrypted DLL, run the dynamic decryption, and then directly loaded in memory, or the DLL when resources are placed in EXE, run only in memory, unlock, requires no external dll