title: 为什么c++类函数里面可以调用没有声明的函数？
desc: <div class
topic: C++
content: C14规范说： 9.3.1 Nonstatic member functions class.mfct.non-static A non-static member function may be called for an object of its class type， or for an object of a class derived Clause 10 from its class type， using the class member access syntax 5.2.5， 13.3.1.1. A non-static member function may also be called directly using the function call syntax 5.2.2， 13.3.1.1 from within the body
answerer_tags: 软件工程师、主攻高级编程语言虚拟机的设计与实现