www.eeworm.com/read/424146/2018257
//7_5.cpp
#include
using namespace std;
class B1 //基类B1，构造函数有参数
{
public:
B1(int i) {cout
www.eeworm.com/read/424146/2018253
//7_6.cpp
#include
using namespace std;
class B1 //基类B1声明
{
public:
B1(int i) {cout
www.eeworm.com/read/277819/4150655
#include
class B1 //基类B1定义
{
public:
B1(int i) {cout
www.eeworm.com/read/277819/4150776
#include
class B1 //基类B1定义
{
public:
B1(int i) {cout