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🖥️ Conditional Statements in Python (IF, ELIF, ELSE) – Definition
Everything you have seen so far has consisted of sequential execution, in which statements are always performed one after the next – and exactly in the order you specified, explicitly.
But the World is often more complicated than that. Frequently, a program needs to skip over some statements, execute a series of statements, repetitively – even choose from between alternate sets of statements to execute. And this is where the core concept of Control Structure comes in, so you can control which instructions are executed, in your program.
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In programming languages, most of the time you want to control the execution flow of your program, since: you want to execute some set of statements, only if the given condition is satisfied. And a different set of statements, when it is not satisfied. Please, note that Conditional Structures are also known as: Decision-making statements!
A Decision is when a program has more than one choice of actions, depending on a variable’s value. In the real World, you commonly must evaluate information around you, and then choose one course of action or another, based on what you observe. Right?
For instance: Think of a traffic light! When it is green, you continue your drive. When you see the light turn yellow, you reduce your speed, and when it is red, you stop! These are Logical Decisions, that depend on the value of the traffic light.
Luckily, when your application needs to make such decisions in Python, the IF statement is how you perform this sort of decision-making. And it allows conditional execution of a statement – or a group of statements – based on the value of a boolean expression.
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☞ WATCH NEXT:
○ Data Types in Python – https://youtu.be/cweUByxBWiU
○ Operators in Python – https://youtu.be/-wDaVLkKOiU
○ IF Statements in Python – https://youtu.be/CC5seZ6OBJ4
○ FOR Loops in Python – https://youtu.be/JgH-D5DSTho
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○ HOW TO Learn Python? Python Tutorial for Beginners [FULL Course] https://youtu.be/9hvnSZPMtuw
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