pascal pause until key is pressed

To pause a Pascal program until a key is pressed, you can use the ReadKey function from the Crt unit. Here is an example:

program PauseUntilKeyPressed;

uses
  Crt;

begin
  WriteLn('Press any key to continue...');
  ReadKey;
end.

In this example, the program prompts the user to press any key by displaying the message "Press any key to continue..." using the WriteLn procedure. Then, the ReadKey function is called, which waits for the user to press a key before the program continues.

Note that the Crt unit is used to provide console-related functions, including ReadKey. Therefore, you need to include the Crt unit in your program by adding the uses Crt; statement at the beginning.

You can customize the prompt message or perform other actions before or after the key is pressed based on your specific requirements.