What is the variable that controls execution of the loop when to continue or stop?
IntroductionUsing for loops and while loops in Python allow you to automate and repeat tasks in an efficient manner. Show 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 do these actions with PrerequisitesYou should have Python 3 installed and a programming environment set up on your computer or server. If you don’t have a programming environment set up, you can refer to the installation and setup guides for a local programming environment or for a programming environment on your server appropriate for your operating system (Ubuntu, CentOS, Debian, etc.) Break StatementIn Python, the Info: To follow along with the example code in this tutorial, open a Python interactive shell on your local system by running the Let’s look at an example that uses the
In this small program, the variable Within the Within the
loop is also a To know when we are out of the loop, we have included a final When we run this code, our output will be the following:
This shows that once the integer The Continue StatementThe The Using the same
The difference in using the
Here, You can use the The Pass StatementWhen an external condition is triggered, the As with the other statements, the Using the same code block as above, let’s replace the
The We’ll run the program and consider the output:
By using the The ConclusionThe To work more with Which variable controls the execution of loop?Hence, thgis variable is refered to as the loop control variable. The increment statement is executed at the end of the loop, after the body has been executed. The increment statement typically changes the loop control variable.
What is a control variable in a while loop?The body of the while loop executes only when the logical expression evaluates to be true. Most usually there is a variable tested in the logical expression (for example: x<5). This variable is called the loop control variable.
What causes the loop to stop its execution?In an event-controlled loop, the computer stops the loop execution when a condition is no longer true. In Python, you can use the while statement for this – it executes the loop body while the condition is true. The while statement checks the condition before performing each iteration of the loop.
What is the loop controlling variable used?A common use of loops is the one in which the loop makes use of a variable (called control variable) that at each iteration is changed by a constant value, and whose value determines the end of the loop. Example: Print the squares of the integers between 1 and 10.
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