=操作符重载（指针型）

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博客围绕=操作符的指针型重载展开，虽未给出具体内容，但核心聚焦于这一信息技术领域的操作符重载技术，该技术在编程中可实现特定功能，对程序设计有重要意义。

#include <iostream>
#include <cstring>

using namespace std;

class Student {
public:
    Student() {
        this->id = 0;
        this->name = nullptr;
    }
    //注意构造函数重新分配内存
    Student(int id, char *name) {
        this->id = id;
        int len = strlen(name);
        this->name = new char[len + 1];
        strcpy(this->name, name);
    }
    //拷贝构造也一样重新分配内存
    Student(const Student &another){
        this->id = another.id;

        int len = strlen(another.name);
        this->name = new char[len+1];
        strcpy(this->name, another.name);
    }
    //重载等号操作符
    Student& operator=(const Student &another){
        //防止自己=自己
        if (this==&another){
            return *this;
        }
        //清空自身的指针开辟出的空间
        if (this->name != nullptr){
            delete[] this->name;
            this->name = nullptr;
            this->id = 0;
        }
        //深拷贝
        this ->id = another.id;
        int len =strlen(another.name);
        this->name = new char[len+1];
        strcpy(this->name, another.name);
        return *this;
    }

    ~Student(){
        if (this->name != nullptr){
            delete[] this->name;
            this->name = nullptr;
            this->id = 0;
        }
    }

private:
    int id;
    char *name;
};

int main() {

    Student a1;
    Student a2(4,"ggG");
    a1 = a2;


    std::cout << "Hello, World!" << std::endl;
    return 0;
}