我们如何在运行时更改常量的值? [英] How can we change the value of a constant at run time?

问题描述

我们如何在运行时更改常量的值?

声明如下:

How can we change the value of a constant at run time?

The declaration is as follows:

const int a=10;

请帮忙！

:confused:

Please help!

:confused:

推荐答案

//如何在运行时更改常量的值?

嗯...请问我们的原因在哪里? :)

// How can we change the value of a constant at run time?

Hmm... Where could be a reason for us, please ? :)

我敢说如果要在程序中更改"a"，则不要将其声明为const int.省略const部分，并使其成为int a;.
然后，您可以随意更改它.


干杯，


Manfred

I''d dare say if you want to change "a" in your program then don''t declare it as a const int. Leave out the const part and make that int a;.
Then you''re free to change it as much as you want.


Cheers,


Manfred

#include<stdio.h>
#include<conio.h>


void main()
{
    const int x = 5;
    int *p = (int *) &x;
    printf("x = %d\n", x);
    *p = 10;
    printf("x = %d", x);
    getch();
}

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