C++_练习—构造与析构

构造与析构

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#include <iostream>

using namespace std;

class info {
public:
    info(int a);
    info(int a, int b);
    info(int a,int b,int c);

    ~info();  // 无类型无返无参

private:
    int age;
    int *temp;
};


info::info(int a) {
    cout << a << endl;
    temp = new int;
}

info::info(int a, int b) {
    cout << a << b << endl;
    temp = new int;

}

info::info(int a, int b, int c) {
    cout << a << b << c << endl;
    temp = new int;
}


info::~info() {
    delete temp;
    cout << "析构函数，系统调用，释放空间" << endl;
}


int main(void) {

    info info1(7);

    cout << "end" << endl;

//    info1.~info();

    system("pause");


    return 0;
}

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