标签: arrays class constructor reference initialization
在C ++类A中,当B类构造函数需要一个参数时,如何初始化B类成员b [4]的数组?
class B{ private: int & i; public: B(int & ref): i(ref) {} ~B(){} } class A{ public: int num; B item[4]; A(): item({num, num, num, num}) {} ~A(){} }