The lua file in cocos2d-x 3.2 generates the luac file

See the official documentation: http://cocos2d-x.org/wiki/Cocos_luacompile

.lua files are compiled into .luac files [.lua to .luac]

Try in the project file directory

cocos luacompile -h view help information

cocos luacompile -s ./projects/MyLuaGame/src -d ./projects/MyLuaGame/src -e -k MyLuaKey -b MyLuaSign

./projects/MyLuaGame/src-->lua source file directory

./projects/MyLuaGame/src--" Generate luac storage directory

For the settings of MyLuaKey and MyLuaSign, see AppDelegate.cpp

stack->setXXTEAKeyAndSign("2dxLua", strlen("2dxLua"), "XXTEA", strlen("XXTEA"));

Modify the corresponding key and sign.