目录一、构造函数：初始化的核心二、对象初始化的具体方式1. 默认初始化（无参构造函数）2. 带参数的构造函数初始化3. 成员初始化列表（推荐）4. 拷贝构造函数初始化5. 列表初始化（C++11 及以上）6. 委托构造函数（
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