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Python break and continue:

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أستاذ المادة هبه امير جابر الخفاجي       20/02/2018 20:49:52
Introduction
Using for loops and while loops in Python allow you to automate and repeat tasks in an efficient manner.

But sometimes, an external factor may influence the way your program runs. When this occurs, you may want your program to exit a loop completely, skip part of a loop before continuing, or ignore that external factor. You can perform these actions with break, continue, and pass statements.

Break Statement
In Python, the break statement provides you with the opportunity to exit out of a loop when an external condition is triggered. You’ll put the break statement within the block of code under your loop statement, usually after a conditional if statement.

Continue Statement
The continue statement gives you the option to skip over the part of a loop where an external condition is triggered, but to go on to complete the rest of the loop. That is, the current iteration of the loop will be disrupted, but the program will return to the top of the loop.

The continue statement will be within the block of code under the loop statement, usually after a conditional if statement.
Using the same for loop program as in the Break Statement section above, we’ll use a continue statement rather than a break statement
You can use the continue statement to avoid deeply nested conditional code, or to optimize a loop by eliminating frequently occurring cases that you would like to reject.

The continue statement causes a program to skip certain factors that come up within a loop, but then continue through the rest of the loop.

Pass Statement
When an external condition is triggered, the pass statement allows you to handle the condition without the loop being impacted in any way; all of the code will continue to be read unless a break or other statement occurs.

As with the other statements, the pass statement will be within the block of code under the loop statement, typically after a conditional if statement.
Using the same code block as above, let’s replace the break or continue statement with a pass statement.


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