Mark education now has: a full set of eight Great God classes; LLVM open class; MJ pro- teaches the basic principles of iOS to compile APP reverse /shell and shell/ data security /OC object/performance optimization; Basic principles of the supervision office; MJ programming requires 30 hours to quickly master C++ and plug-in actual combat; MJ Decryption: Why excellent programmers must understand c++；+; +; MJ teaches you to play assembly and explore the essence of programming language with assembly.