this指针

this指针的由来：C++到C的翻译

this指针的作用

指向成员函数所作用的对象

#include <bits/stdc++.h>
using namespace std;
class Complex
{
    private:
        int real, imag;
    public:
        Complex(double, double);
        void PutComplex(void);
        Complex AddOne(void);
};
Complex::Complex(double r, double i)
{
    this->real = r;
    this->imag = i;
}
void Complex::PutComplex(void)
{
    cout << this->real << ends << this->imag << endl;
}
Complex Complex::AddOne(void)
{
    this->PutComplex();//等价于PutComplex()
    this->real++;//等价于real++
    return *this;
}
int main(void)
{
    Complex c1(2, 3);
    Complex c2 = c1.AddOne();//2 3
    c2.PutComplex();//3 3
    return 0;
}

this指针和静态成员函数