During the first iteration, the value ofiwill be8, while in next it will be9and so on, uptill6, in the last iteration. Doing so, one can easily use these individual list element values inside the loop, as in our case, we have printed them. 在第一次迭代期间,i的值为8,而在下一个...
Python for Loops: The Pythonic Way In this quiz, you'll test your understanding of Python's for loop. You'll revisit how to iterate over items in a data collection, how to use range() for a predefined number of iterations, and how to use enumerate() for index-based iteration.Getting...
The way iterators and iterables work is called theiterator protocol. List comprehensions, tuple unpacking,forloops, and all other forms of iteration rely on the iterator protocol. I’ll explore iterators more in future articles. For now know that iterators are hiding behind the scenes of all it...
In this tutorial, you'll learn about indefinite iteration using the Python while loop. You'll be able to construct basic and complex while loops, interrupt loop execution with break and continue, use the else clause with a while loop, and deal with infin
Python comes with two inbuilt keywords to interrupt loop iteration,breakandcontinue. Break Keyword In While loop The break keyword immediately terminates the while loop. Let's add a break statement to our existing code, x =1while(x<=3):print(x) x = x +1ifx ==3:breakelse:print("x is...
foriinrange(4):forjinrange(4):ifj == i:breakprint(i, j) Run Output: 1 0 2 0 2 1 3 0 3 1 3 2 As you can see in the output, no rows contain the same number. Continue Nested loop Thecontinue statementskip the current iteration and move to the next iteration. In Python, when...
for i in range(10, 100): print(i) Loops can also be broken without having to finish them completely. This can be done with the “continue” and “break” statements. The “break” statement will completely terminate the entire loop, meaning that python will quit the current iteration and...
foriinrange(0,4):print(i) Output: 0123 In the above example, we setias the temporary iterable variable and printed its value in each iteration. If you are not already aware of therange()keyword, it's one of the Python’s built-in immutable sequence types. In loopsrange()can be used...
Python supports the following control statements. Let us go through the loop control statements briefly. Iterator and Generator Iteratoris an object which allows a programmer to traverse through all the elements of a collection, regardless of its specific implementation. In Python, an iterator object...
Continue to the next iteration if i is 3: i =0 whilei <6: i +=1 ifi ==3: continue print(i) Try it Yourself » The else Statement With theelsestatement we can run a block of code once when the condition no longer is true: ...