Is this possible ?
这可能吗 ？
My colleague told me that naming a ivar with prefix underscore like what apple mostly does may cause some problem. He said that apple can declare an ivar in a class and doesn't let it be in the public header file. So if i accidentally name an ivar that get collide with that "secret ivar" which is not in the header file , this will cause a problem.My colleague tol
