C++学习笔记01(自学草稿)

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于 2025-07-07 23:34:43 发布

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分类专栏： C++ 文章标签： c++ 学习笔记

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C++千锋课程

1.6.7 引用：

void test167() {
    // 基本语法
    // Type& ref = val;
    
    int num = 10;
    int &a = num;

    cout << "num = " << num << "; a = " << a << endl;
    cout << "&num = " << &num << "; &a = " << &a << endl;

    a = 100;
    cout << "num = " << num << "; a = " << a << endl;

    num = 20;
    cout << "num = " << num << "; a = " << a << endl;

    cout << "num ==== a ==== " << endl;
}

6.10引用的本质

所谓的引用，其实本质来讲就是一个指针常量.