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                ``` /** * 析構函數 * 定義格式: ~類名() * 析構函數不能帶函數 * 析構函數能釋放資源 * * 如果沒有自定義的析構函數,系統會自動生成 * 析構函數在對象銷毀時自動調用 * 析構函數沒有返回值,沒有參數也不能重載 * * 對象的生命周期 * 申請內存->初始化列表->構造函數->參與運算->析構函數->釋放內存 * * * */ #include <iostream> #include <string> using namespace std; clss Student{ public: Student(){ m_char_name=new char[20]; } ~Student(){ delete []m_char_name; } private: char *m_char_name; }; int main(){ return 0; } ```
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