摘要：class A { public: int m_a; A() : m_a(0) { std::cout << "A()" << std::endl; } A(const A& other) : m_a(other.m_a) { std::cout << "A(const A&)" << std::e 阅读全文

摘要：1 class A { 2 public: 3 int m_x; 4 5 A(int x) 6 : m_x(x) 7 { 8 std::cout << "A(int )" << std::endl; 9 } 10 A(const A& a) 11 : m_x(a.m_x) 12 { 13 std:: 阅读全文