这个指针在C ++中 [英] this pointer in C++

问题描述

对此指针的使用感到困惑..

Confused about the usage of this pointer..

在&mbsp; m_pX-> pY-> Z（this）; calss X有m_pX，它指向Y类.Calss Y有成员函数Z.在这个例子中，"this"和指针指向X类或Y类？

In  m_pX->pY->Z ( this ); calss X has m_pX which points to class Y. Calss Y has member funtion Z. In this example, "this" pointer points to class X or class Y ?

谢谢

推荐答案

在12/7/2016 10:39 PM，HenryJang写道：

On 12/7/2016 10:39 PM, HenryJang wrote:

对此指针的使用感到困惑..



In  m_pX-> pY-> Z（this）; calss X有m_pX，它指向Y类.Calss Y有成员函数Z.在这个例子中，"this"和指针指向类X或类Y？

Confused about the usage of this pointer..

In  m_pX->pY->Z ( this ); calss X has m_pX which points to class Y. Calss Y has member funtion Z. In this example, "this" pointer points to class X or class Y ?

此代码位于某个类的成员函数体中。 "这"是指向该类实例的指针 - 调用该成员函数的实例。

This code is in the body of a member function of some class. "this" is the pointer to an instance of that class - the instance on which that member function is called.

换句话说，你有类似

void SomeClass::SomeMethod() {
    DoSomethingWith(this);
}

此处，"this"是SomeClass *。

Here, "this" is SomeClass*.

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