C++实现的顺序表类，包括了初始化、赋值、遍历、取值、求表长、插入、查找、删除和退出等基本操作：

在C++中，可以创建一个简单的顺序表（如数组或动态数组）来存储元素并支持上述操作。这里是一个基础的顺序表类示例：

#include <iostream>
using namespace std;

class SequenceList {
private:
    int* elements; // 存储数据的指针
    int size;      // 当前列表长度
    int capacity;  // 初始容量

public:
    // 初始化函数
    SequenceList(int capacity = 10) : elements(new int[capacity]), size(0), capacity(capacity) {}

    ~SequenceList() { // 析构函数，释放内存
        delete[] elements;
    }

    // 赋值操作符重载
    SequenceList& operator=(const SequenceList& other) {
        if (this != &other) {
            delete[] elements;
            size = other.size;
            capacity = other.capacity;
            elements = new int[capacity];
            for (int i = 0; i < size; ++i)
                elements[i] = other.elements[i]; // 深拷贝
        }
        return *this;
    }

    // 遍历
    void traverse() const {
        cout << "Elements in the list: ";
        for (int i = 0; i < size; ++i)
            cout << elements[i] << " ";
        cout << endl;
    }

    // 取值
    int get(int index) const {
        if (index >= 0 && index < size)
            return elements[index];
        else
            throw out_of_range("Index is out of range.");
    }

    // 求表长
    int length() const { return size; }

    // 插入
    void insert(int value, int index = 0) {
        if (index > size)
            index = size;
        if (size == capacity) {
            resize(capacity * 2); // 如果已满，扩容
        }
        for (int i = size; i > index; --i)
            elements[i] = elements[i - 1]; // 将后续元素后移
        elements[index] = value;
        size++;
    }

    // 查找
    int search(const int& target) const {
        for (int i = 0; i < size; ++i)
            if (elements[i] == target)
                return i;
        return -1; // 如果未找到目标，返回 -1
    }

    // 删除
    void remove(int index) {
        if (index < 0 || index >= size)
            throw out_of_range("Index is out of range.");
        for (int i = index; i < size - 1; ++i)
            elements[i] = elements[i + 1]; // 后面的元素向前移动
        size--;
    }

    // 退出函数
    void exit() { cout << "Leaving the sequence list...\n"; } // 这里只是一个标记，实际程序无需显示此消息
};

// 示例
int main() {
    SequenceList list(5);
    list.insert(1);
    list.insert(2, 1);
    list.traverse();
    cout << "Length: " << list.length() << endl;
    cout << "Search result for 2: " << list.search(2) << endl;
    return 0;
}