loops - When to use "while" or "for" in Python - Stack Overflow
2022年12月27日 · First of all there are differences between the for loop in python and in other languages. While in python it iterates over a list of values (eg: for value in [4,3,2,7]), in most …
Python while loop inside while loop - Stack Overflow
2013年3月28日 · You've forgotten to reset the value of num (and also even and odd) inside the outer while loop (before starting the while num < 100 loop). Second time in, it doesn't need to …
While loop with if/else statement in Python - Stack Overflow
2016年4月25日 · password is not an input equal to string "your password", which makes the while expression True, while true repeat. if password does equal 'your password' expression is false, …
How to break out of while loop in Python? - Stack Overflow
2024年11月11日 · It's bad programming." While I try to avoid them as a general rule, many times I have simplified logic structures in a while loop simply by using a single break statement. While …
python - How to emulate a do-while loop? - Stack Overflow
Here's a very simple way to emulate a do-while loop: condition = True while condition: # loop body here condition = test_loop_condition() # end of loop The key features of a do-while loop are …
python combine 'while loop' with 'for loop' to iterate through …
2014年7月25日 · I am trying to combine a while loop with a for loop to iterate through some list but I am getting infinite loops. My code: l=[0,2,3,4] lo=0 for i in range(len(l)): while (True): lo+=1 if …
python - How can I stop a While loop? - Stack Overflow
You need to understand that the break statement in your example will exit the infinite loop you've created with while True. So when the break condition is True, the program will quit the infinite …
How would I stop a while loop after n amount of time?
Good point about about putting the timeout check in the while loop condition. As for the comment about time.sleep(), the code does no work so will be cycling through the loop as fast as it can …
loops - Is there a "do ... until" in Python? - Stack Overflow
2015年6月21日 · Python 2.7.3 $ python -mtimeit 'while 0:pass' 100000000 loops, best of 3: 0.0132 usec per loop $ python -mtimeit 'while False:pass' 10000000 loops, best of 3: 0.0538 …
Python: How to keep repeating a program until a specific input is ...
Every time I write a while loop where the variable that the condition checks is set inside the loop (so that you have to initialize that variable before the loop, like in your second example), it …