如何制作打印文本并使其保留在 window 中的代码？

Question

So, if you don't really know what do I mean, there's a small explanation. I'm also new in C++ so I need help with some things, so yeah. There's the explanation.

If you make a code, for example

cout << "Hello world!";```
-- I forgot how to make it fully good, but that's an example

Then it prints and closes extremelly fast. So, how can I make it so that it DOESN'T dissapear?

Answer 1

I am assuming you are talking about console window that closes fast. In order to prevent that there are multiple ways of doing it. But i will write two simplest ways of doing so.

1. Add header at the top of your C++ program

    #include <stdlib.h>

Then in the end of main function just before return 0 write this line of code

system("pause");

2. Another way of doing this is to get any character input before return 0 . So write these lines of code

    Console.WriteLine("Press any key to exit..."); Console.ReadKey();

Answer 2

One of the simplest solutions is to use std::getchar() or std::cin.get() . The program will wait for user input. However, if there are already characters in the input buffer, then the program, roughly speaking, will ignore and will not wait for input from the user.

If the program is specific to Windows, then one of the most common solutions is to use std::system("pause") .

For std::system() , you must also include the cstdlib header.

But it would still be better to set a breakpoint at the end of the program or, if your IDE allows (for example Visual Studio), then enable the option that leaves the console opened even after exiting. For example, VS allows you to run a program in non-debug mode, which does not close the console. To run the program in this mode, you can press the key combination Ctrl + F5 .

However, in this case, in the project settings there should be Subsystem option in the System section in the Linker. And the value of Subsystem should be /SUBSYSTEM:CONSOLE .