BASIC: Blink LED w/ Push Button Using DO...WHILE Loop

[ineedhelpnow]

use the DO...WHILE...LOOP statement to blink an LED at a rate of 2 times a second as long as a push button is pressed. If the push button is not being pressed, the program should wait until the button is pressed and held before blinking the LED. To solve this problem, the DO...WHILE...LOOP will need to be inside of a separate master DO...LOOP that is used to allow our program to continuously repeat itself while waiting for a button press.

please help! i have no idea what to do.
the circuit looks something like this
View attachment 3412

 

[Evgeny.Makarov]

Writing programs that do some computations with numbers or strings and output them to a console ([m]cout[/m] in C++) is the easiest. As soon as we involve APIs (application program interfaces, i.e., libraries that deal with a specific topic), such as those that are used to write graphical user interface or control circuits, things become significantly more complicated. Not only are there different APIs for the same task, but those APIs are often huge and require writing a lot of code even for simple tasks. For example, reading a name from a console and printing "Hello, <name>" can be done in a couple of lines. Writing a program that displays a window with a text box, a button and a label (output area) may take tens of lines.

So, I have no idea which API you are supposed to use to work with circuits.