c++ ：： -> .

 * Box.h
 *
 *  Created on: 2018年12月13日
 *      Author: weihan
 */
#include<string>
#ifndef BOX_H_
#define BOX_H_
using namespace std;

class Box {
public:
    int publicint,age;
    string name;
    Box(int a = 0, string name = "ab");
    virtual ~Box(); //类的析构函数是类的一种特殊的成员函数，它会在每次删除所创建的对象时执行。
    static int staticint;
    static string staticstring;
    static string getpubstring() {
        return staticstring;
    }
public:
    int pubint = 10;
    string pubstr = "abc";
private:
    int priint = 11;
protected:
    string prtint = "bcsd";

};

Box::Box(int age, string name) {
//  this。age =age ; 错
    this->name=name;
}

Box::~Box() {
}

int Box::staticint = 1000;
string Box::staticstring = "bcddfsfadf";

int main() {
    Box box1(1, "abc");
    Box box2(11, "efg");
    Box * pBox;
    pBox = &box1;
    cout << Box::getpubstring() << endl; //:: 应该是命名空间的意思，命名空间内
    cout << pBox->pubstr << endl;
    cout << box1.publicint << endl;
//  cout << box1->publicint << endl; 错
//  cout <<  pBox.pubstrt << endl; 错

}

#endif /* BOX_H_ */```