Python for loop vs while loop Thefor loopis usually used in the sequence when the number of iterations is known. For example, # loop is iterated 4 timesforiinrange(4):print(i) Run Code Output 0 1 2 3 Thewhileloop is usually used when the number of iterations is unknown. For example...
After that, we test what the user entered to see if it matches the ship’s location. If it does, Python says “It’s a hit!” and ends the loop. Otherwise, we just put an X on the grid so the user knows he already tried that place. Line 40 takes away one torpedo. Lines 42 ...
In the above example the loop is terminated when x becomes 5. Here we use break statement to terminate the while loop without completing it, therefore program control goes to outside the while - else structure and execute the next print statement. Flowchart: Previous:Python For Loop Next:Pytho...
Info:To follow along with the example code in this tutorial, open a Python interactive shell on your local system by running thepython3command. Then you can copy, paste, or edit the examples by adding them after the>>>prompt. We’ll create a file calledpassword.pyin our text editor of ...
On the other hand, you’ll want to use a while loop in Python when you don’t know in advance how many times the code will need to be repeated. For example, say you want to write code for the exchange of messages over an open connection. As long as the connection is up, messages...
A block of code that you want to execute repeatedly That's all it takes! How To Make A While Loop in Python Now that you know what you need to construct a while loop, all that is left to do now is to look at a real-life example where the while loop is used before you start ...
while True: # Execute your code here if not condition: break Powered By In this structure, the loop executes at least once. The break statement is used to exit the loop if a certain condition is met, mimicking the behavior of a "do-while" loop. Practical Python Do-While Example: User...
解决While loop问题 - Python 当我们在使用while循环时,需要确保循环的终止条件最终会被满足,否则循环将会无限执行下去。通常情况下,我们可以在循环内部修改循环控制变量,使得终止条件得以满足。 1、问题背景 一位开发者在使用 Python 开发一个基于文本的游戏时,遇到了 while 循环的问题。他将游戏代码和音频处理代码...
The else Clause In While Loop Python provides unique else clause to while loop to add statements after the loop termination. This can be better understood by the following example,x = 1 while(x<=3): print(x) x = x + 1 else: print("x is now greater than 3")Copy ...
ExampleGet your own Python Server Print i as long as i is less than 6: i =1 whilei <6: print(i) i +=1 Try it Yourself » Note:remember to increment i, or else the loop will continue forever. Thewhileloop requires relevant variables to be ready, in this example we need to def...