This article describes how to break out of nested loops in Python. Show
See the following article for the basic usage of the
How to write nested loops in PythonIn Python, nested loops (multiple loops) are written as follows. Blocks are represented by indents in Python, so just add more indents.
When
Break out of nested loops with else and continueIn Python's
You can break all loops with
The code with explanation is as follows.
When the inner loop ends normally without When the inner loop ends with As a result, whenever the inner loop ends with The idea is the same even if the number of loops increases. An example of a triple loop is as follows.
Break out of nested loops with a flag variableThe above way of using Adding a flag variable may make the code easier for many to understand. In the condition that the inner loop ends with Double-loop:
Triple-loop:
You can avoid nested loops with
You can use
Since it is a single loop, you can simply
Adding the argument of
NoteIn In the following example, the multiplication is performed 9 times for both
In the case of nested loops, the process for the outer loop is executed by the number of outer elements. In the following
example, the multiplication for the variable
Speed comparisonThe result of measuring the execution time of each way with the magic command
Please note that the results will
differ depending on the number of elements and the number of Take a triple loop with 100 elements as an example.
Using However, in some cases, What are the two types of loops in Python?Answer: Python generally supports two types of loops: for loop and while loop. However, a third loop[nested loop] can be generated by nesting two or more of these loops.
What are the 3 types of loops in Python?Loop Types. while loop.. for loop.. nested loops.. Which is the inner loop?In computer programs, an important form of control flow is the loop which causes a block of code to be executed more than once. A common idiom is to have a loop nested inside another loop, with the contained loop being commonly referred to as the inner loop.
How do you break inner and outer loops in Python?5 Ways To Break Out of Nested Loops in Python. Not as elegant as it should be. ... . Add a Flag Variable. This is an effective solution. ... . Raise an Exception. If we can't use the break keyword as expected. ... . Check the Same Condition Again. ... . Use the For-Else Syntax. ... . Put It Into a Function.. |