function class(super) local mt = {__call = function(_c, ...) local function create(_c, _o, ...) if _c.__super then create(_c.__super, _o, ...) end if _c.__ctor then _c.__ctor(_o, ...) end return _o end local _o = create(_c, {}, ...) return setmetatable(_o, _c) end} mt.__index = super or mt return setmetatable({__super = super}, mt) end ---------------------------------------------------------------------- A = class() function A:__ctor(s) self.i = 123 self.j = 333 print('A ctor', s) end local a = A('a') print(a.i, a.j) -- B繼承A B = class(A) function B:__ctor(s) self.i = 444 print('B ctor', s) end local b = B('b') print(b.i, b.j)
