智能指针中的reset和release

测试代码

#include <iostream>
#include <memory>
using namespace std;

class test
{
public:
    test()
    {
    }
    ~test()
    {
        cout << "over" << endl;
    }

public:
    string name;
    int age;
};

int main()
{
    shared_ptr<test> a = make_shared<test>();
    a->name = "haha";
    a->age = 18;

    test *jk = new test();
    jk->name = "jkjk";
    jk->age = 19;

    a.reset(jk); //jk不需要去delete，智能指针会管控它
    cout << a->name << " " << a->age << endl;

    unique_ptr<test> plpl(new test());
    plpl->name = "pmpm";
    plpl->age = 21;

    auto p = plpl.release();//需要手动delete否则会造成内存泄露
    cout<<p->name<<" "<<p->age<<endl;

    delete p;
    p=nullptr;
    return 0;
}

运行结果

over
jkjk 19
pmpm 21
over
over