Conditionals: Difference between revisions

From Computer Science Wiki
No edit summary
No edit summary
Line 3: Line 3:
A conditional statement evaluates an expression and executes instructions depending on the outcome of the evaluation. Most of the time, the evaluation is [[boolean]] (true or false).  
A conditional statement evaluates an expression and executes instructions depending on the outcome of the evaluation. Most of the time, the evaluation is [[boolean]] (true or false).  


An example of a simpl conditional in PHP:


<syntaxhighlight lang="php" >
<syntaxhighlight lang="php" >
  if player_guess == secret_number:
 
        print("You won in " + str(guess) + " guesses!")
$secret_number = 54;
     
 
        play_again = raw_input("Do you want to play again? ")
if $player_guess ==  
        if play_again == "y" or play_again == "Y" or play_again == "yes":
 
            guess = 0
            game = game + 1
        break
    elif player_guess < secret_number:
        print("That is a bit to low")
    elif player_guess > secret_number:
        print("That is a bit to high")
</syntaxhighlight>
</syntaxhighlight>



Revision as of 20:45, 18 September 2016

Programming basics[1]

A conditional statement evaluates an expression and executes instructions depending on the outcome of the evaluation. Most of the time, the evaluation is boolean (true or false).

An example of a simpl conditional in PHP:

$secret_number = 54;

if $player_guess ==

A video[edit]

This video references the C programming language and scratch, but the ideas about conditionals are excellent. In the case of conditionals, PHP and C share similar syntax (but not exact).

Standards[edit]

  • Define the terms: variable, constant, operator, object.

See Also[edit]

References[edit]