实例指针(this)
最后更新于：2022-04-02 02:07:27
[TOC]
## 参数与成员变量重名
可使用 `this->` 做处理
```
class A
{
public:
int a;
void setData(int a)
{
this->a=a;
};
void getData()
{
cout << this->a<< endl;
};
};
```
## 判断一个对象是否为自己
#include
using namespace std;
class A
{
public:
bool check(A *obj)
{
if (obj == this)
{
cout << "is self" << endl;
}
else
{
cout << "is not self" << endl;
}
}
};
class B :public A
{
public:
A *getBase()
{
A *p = this;
return p;
}
};
int main()
{
A a;
B b;
A *p1 =&a;
A *p2=b.getBase();
a.check(p1);
a.check(p2);
return 0;
}
```
输出 ``` is self is not self ``` ## 运算符重载
';
main.cpp
``` #include输出 ``` is self is not self ``` ## 运算符重载