题解 | #浅拷贝和深拷贝#
浅拷贝和深拷贝
https://www.nowcoder.com/practice/535753110cbd4e8987adc2e67f392ab7
#include <iostream> #include <cstring> using namespace std; class Person { public: char* name; // 姓名 int age; // 年龄 // 浅拷贝:简单的赋值拷贝操作 // 深拷贝:在堆区重新申请空间,进行拷贝操作 Person(const char* name, int age) { this->name = new char[strlen(name) + 1]; // 深拷贝,使用堆区 strcpy(this->name, name); this->age = age; } // write your code here...... Person(const Person& p) { //拷贝构造函数 this->name = new char[strlen(p.name) + 1]; //设置name字符数组的长度 strcpy(this->name, p.name); //拷贝name数组 this->age = p.age; } void showPerson() { cout << name << " " << age << endl; } ~Person() { if (name != nullptr) { delete[] name; // 释放 name = nullptr; } } }; int main() { char name[100] = { 0 }; int age; cin >> name; cin >> age; Person p1(name, age); Person p2 = p1; p2.showPerson(); return 0; }