C++Qt不用GUI的方式实现类似multisim中复制拖拽器件并且器件之间连接起来的功能的完整代码

实现类似Multisim中复制拖拽器件并且器件之间连接起来的功能需要一定的复杂度，以下是一个简单的示例代码，可以作为参考：

#include <iostream>
#include <vector>

using namespace std;

class Component {
public:
    Component(int id) : id(id) {}
    int getId() const { return id; }
private:
    int id;
};

class Connector {
public:
    Connector(Component* src, Component* dest) : src(src), dest(dest) {}
    Component* getSrc() const { return src; }
    Component* getDest() const { return dest; }
private:
    Component* src;
    Component* dest;
};

class Circuit {
public:
    void addComponent(Component* c) { components.push_back(c); }
    void addConnector(Connector* c) { connectors.push_back(c); }
    void removeComponent(Component* c) {
        for (auto it = connectors.begin(); it != connectors.end();) {
            if ((*it)->getSrc() == c || (*it)->getDest() == c) {
                delete *it;
                it = connectors.erase(it);
            } else {
                ++it;
            }
        }
        components.erase(remove(components.begin(), components.end(), c), components.end());
        delete c;
    }
    void removeConnector(Connector* c) {
        connectors.erase(remove(connectors.begin(), connectors.end(), c), connectors.end());
        delete c;
    }
    const vector<Component*>& getComponents() const { return components; }
    const vector<Connector*>& getConnectors() const { return connectors; }
private:
    vector<Component*> components;
    vector<Connector*> connectors;
};

int main() {
    Circuit circuit;

    // 添加组件
    Component* c1 = new Component(1);
    circuit.addComponent(c1);
    Component* c2 = new Component(2);
    circuit.addComponent(c2);
    Component* c3 = new Component(3);
    circuit.addComponent(c3);

    // 添加连接
    Connector* conn1 = new Connector(c1, c2);
    circuit.addConnector(conn1);
    Connector* conn2 = new Connector(c2, c3);
    circuit.addConnector(conn2);

    // 打印电路
    cout << "Circuit components: ";
    for (const auto& c : circuit.getComponents()) {
        cout << c->getId() << " ";
    }
    cout << endl;
    cout << "Circuit connectors: ";
    for (const auto& c : circuit.getConnectors()) {
        cout << c->getSrc()->getId() << "->" << c->getDest()->getId() << " ";
    }
    cout << endl;

    // 复制并连接器件
    Component* c4 = new Component(4);
    circuit.addComponent(c4);
    Connector* conn3 = new Connector(c3, c4);
    circuit.addConnector(conn3);
    Connector* conn4 = new Connector(c1, c4);
    circuit.addConnector(conn4);

    // 打印电路
    cout << "Circuit components: ";
    for (const auto& c : circuit.getComponents()) {
        cout << c->getId() << " ";
    }
    cout << endl;
    cout << "Circuit connectors: ";
    for (const auto& c : circuit.getConnectors()) {
        cout << c->getSrc()->getId() << "->" << c->getDest()->getId() << " ";
    }
    cout << endl;

    // 删除组件
    circuit.removeComponent(c2);

    // 打印电路
    cout << "Circuit components: ";
    for (const auto& c : circuit.getComponents()) {
        cout << c->getId() << " ";
    }
    cout << endl;
    cout << "Circuit connectors: ";
    for (const auto& c : circuit.getConnectors()) {
        cout << c->getSrc()->getId() << "->" << c->getDest()->getId() << " ";
    }
    cout << endl;

    // 删除连接
    circuit.removeConnector(conn3);

    // 打印电路
    cout << "Circuit components: ";
    for (const auto& c : circuit.getComponents()) {
        cout << c->getId() << " ";
    }
    cout << endl;
    cout << "Circuit connectors: ";
    for (const auto& c : circuit.getConnectors()) {
        cout << c->getSrc()->getId() << "->" << c->getDest()->getId() << " ";
    }
    cout << endl;

    return 0;
}

这个示例代码使用了基本的面向对象的设计，包含三个类：`Component`（器件）、`Connector`（连接器）和`Circuit`（电路）。`Circuit`类表示整个电路，其中包含一个组件列表和连接器列表。每个组件和连接器都有一个唯一的ID。`Circuit`类提供了一些方法来添加、删除组件和连接器，并提供了获取组件和连接器列表的方法。

在这个示例中，我们首先创建了三个组件，并添加了两个连接器。然后，我们复制组件3，并将其与一个新组件4连接，同时将组件1和组件4连接。接下来，我们删除组件2和连接器3，并打印整个电路的状态。

需要注意的是，这只是一个简单的示例代码，实际情况下，实现类似Multisim中的复杂电路编辑功能需要更多的设计和实现。