高飞实验10和11

#include <iostream>
#include <list>
#include <memory>
#include <utility>
#include <cstddef>

using namespace std;

class File
{
public:
    File(string name) { m_name = name; }
    virtual ~File() {}
    virtual void Add(std::unique_ptr<File>) {}//这里默认实现为空函数，leaf节点中不用实现为空了
    virtual void Show(int depth) {} // 这里默认实现为空函数，leaf节点中不用实现为空了
protected:
    string m_name;
};

//具体公司
class ConcreteFile : public File
{
public:
    ConcreteFile(string name) : File(name) {}
    virtual ~ConcreteFile()
    {
        for (auto& File : m_listFile)
        {
            File.reset(nullptr);
        }
    }
    void Add(std::unique_ptr<File> pCom) { m_listFile.push_back(std::move(pCom)); } //位于树的中间，可以增加子树
    void Show(int depth)
    {
        for (int i = 0; i < depth; i++)
            cout << "-";
        cout << m_name << endl;
        auto iter = m_listFile.begin();
        for (; iter != m_listFile.end(); iter++) //显示下层结点
            (*iter)->Show(depth + 2);
    }
private:
    list<std::unique_ptr<File>> m_listFile;
};

//具体的部门，财务部
class FinanceDepartment : public File
{
public:
    FinanceDepartment(string name) :File(name) {}
    virtual ~FinanceDepartment() {}
    virtual void Show(int depth) //只需显示，无限添加函数，因为已是叶结点
    {
        for (int i = 0; i < depth; i++)
            cout << "-";
        cout << m_name << endl;
    }
};

//具体的部门，人力资源部
class HRDepartment :public File
{
public:
    HRDepartment(string name) :File(name) {}
    virtual ~HRDepartment() {}
    virtual void Show(int depth) //只需显示，无限添加函数，因为已是叶结点
    {
        for (int i = 0; i < depth; i++)
            cout << "-";
        cout << m_name << endl;
    }
};

int main()
{
    auto root = std::make_unique<ConcreteFile>("文件11");
    auto leaf1 = std::make_unique < FinanceDepartment>("文件21");
    auto leaf2 = std::make_unique < HRDepartment>("文件22");
    root->Add(std::move(leaf1));
    root->Add(std::move(leaf2));

    //分公司
    auto mid1 = std::make_unique < ConcreteFile>("文件31");
    auto leaf3 = std::make_unique < FinanceDepartment>("文件41");
    auto leaf4 = std::make_unique < HRDepartment>("文件42");
    mid1->Add(std::move(leaf3));
    mid1->Add(std::move(leaf4));
    root->Add(std::move(mid1));
    //分公司
    auto mid2 = std::make_unique < ConcreteFile>("文件32");
    auto leaf5 = std::make_unique < FinanceDepartment>("文件43");
    auto leaf6 = std::make_unique < HRDepartment>("文件44");
    mid2->Add(std::move(leaf5));
    mid2->Add(std::move(leaf6));
    root->Add(std::move(mid2));
    root->Show(0);


    return 0;
}