车b();解释此语句在执行时将执行的操作 [英] Car b(); Explain this statement what it would be done in the time of execution

问题描述

Car
{
public:
    Car(){}
};

int main()
{
    Car b();
}

车是一类

然后我们写"Car b();"请告诉我此语句的意思是

Car is one class

Then we write "Car b();" Please tell me this statement means

推荐答案

这意味着您实例化(创建)一个名为b的对象，该对象的类型为Car.这是基本的C ++，您可以在此处 [ ^ ]或您当地书店或图书馆的书中

不好意思，我没想清楚.该表达式试图定义一个名为b的函数，该函数返回类型为Car的对象.实例化Car对象的正确方法是使用以下形式的语句:

It means you instantiate (create) an object called b of type Car. This is basic C++, and you can find some good information about classes and objects here[^] or in books from your local bookshop or library.

Apologies, I was not thinking straight. That expression is trying to define a function called b, which returns an object of type Car. The correct way to instantiate a Car object is by a statement of the form:

Car b;
// or to create an object on the heap
Car* pb = new Car();

与Richard相反，我认为b不是对象而是函数.我的解释基于本周第一名草药销售商 [

Contrary to Richard I believe b is not an object but a function. My interpretation is based on Herb Sutters Guru Of The Week #1[^]

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