1.这里重载了 -> * 构造一个智能指针,在提取复杂对象中一个属性值的时候,也可以使用 * ->等符号 这里叫智能指针.
2.注意类的构造函数中传参的构造写法.
#include <iostream>
using namespace std;
class Test
{
public:
Test(){
this->a = 10;
}
void printT(){
cout<<a<<endl;
}
private:
int a;
};
class MyTestPointer
{
public:
MyTestPointer(){
p = NULL;
}
MyTestPointer(Test *p){
this->p = p;
}
~MyTestPointer(){
delete p;
}
Test *operator->()
{
return p;
}
Test& operator *(){
return *p;
}
private:
Test *p;
};
int main(int argc, const char * argv[]) {
// insert code here...
std::cout << "Hello, World!\n";
Test *p = new Test;
p->printT();
delete p;
MyTestPointer myp = new Test; //这里调用的 含有Test *的构造函数
myp->printT();//重写 ->
Test(*myp).printT();//重写 * 提取符
return 0;
}
