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  <title>Control Structures</title>
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      <h3>Some topics in Control Structures</h3>

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        <li class="active"><a href="control structures.html">if-elif-else statements</a></li>
        <li ><a href="nested if.html">Nested if statements</a></li>
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      <h2>If and else statements</h2>


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    <b>if-else statements:</b>
      <p> The if statement alone tells us that if a condition is true it will execute a block of statements and if the condition is false it won’t. But what if we want to do something else if the condition is false. Here comes the else statement. We can use the else statement with if statement to execute a block of code when the condition is false.</p>
      <b>Syntax:</b>
      <pre>if (condition):
    # Executes this block if
    # condition is true
else:
    # Executes this block if
    # condition is False</pre>


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       <iframe src="https://trinket.io/embed/python3/64aee30379" width="100%" height="356" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen></iframe>

       <b>if-elif-else:</b>
       <p>Here, a user can decide among multiple options. The if statements are executed from the top down. As soon as one of the conditions controlling the if is true, the statement associated with that if is executed, and the rest of the ladder is bypassed. If none of the conditions is true, then the final else statement will be executed.</p>
       <b>Syntax:</b>

       <pre>if (condition):
    statement
elif (condition):
    statement
.
.
else:
    statement
</pre><br>
       <iframe src="https://trinket.io/embed/python3/73223ed592" width="100%" height="356" frameborder="0" marginwidth="0" marginheight="0" allowfullscreen></iframe><br><br>


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