1、迭代（Iteration）2、循环（Loop）3、递归（Recursion）4、遍历（Traversal）5、总结 1、迭代（Iterat...
value)目录收起1、迭代（Iteration）2、循环（Loop）3、递归（Recursion）4、遍历（Traversal）5、总...
When programming in Python,forloops often make use of therange()sequence type as its parameters for iteration. Break statement with for loop The break statement is used to exit the for loop prematurely. It’s used to break the for loop when a specific condition is met. Let’s say we hav...
Else block in for loop Reverse for loop Backward Iteration using the reversed() function Reverse for loop using range() Nested for loops While loop inside for loop for loop in one line Accessing the index in for loop Iterate String using for loop ...
Theforloop may have control statements likebreakandcontinue, or theelseclause. for循环可能具有控制语句,例如break和continue或else子句。 There may be a situation in which you may need to exit a loop completely for a particular condition or you want to skip a part of the loop and start the ne...
PythonUserPythonUseralt[Condition True][Condition False]alt[Condition True][Condition False]Start loopCheck conditionExit current loopContinue to next iterationIf nested loopExit outer loopContinue nested loop 希望这些内容能够帮助你更深入理解如何在Python中控制循环。如果你有任何问题或需要进一步的帮助,请随时...
self.index+=1returnresultelse:raise StopAsyncIteration # 异步迭代asyncforiteminAsyncIterator():print(item) 结语 Python异步编程的黑科技让程序员能够在高效处理大量并发任务的同时,保持代码的简洁和可读性。通过了解事件循环、异步上下文管理器、异步队列等技术,你将能够更深入地掌握异步编程的本质。愿你在异步的世...
Exit the loop whenxis "banana", but this time the break comes before the print: fruits = ["apple","banana","cherry"] forxinfruits: ifx =="banana": break print(x) Try it Yourself » The continue Statement With thecontinuestatement we can stop the current iteration of the loop, and...
Iteration one of Python's most powerful functions and a way to access colleaction elements. 迭代器是一个可以记住遍历位置的对象。 An iterator is an object that can remenber to traverse the location. 迭代器对象从集合的第一个元素开始访问,直到所有的元素被访问完结束。迭代器只能往前不会后退。
A while loop works by evaluating a condition at the start of each iteration. If the condition is true, then the loop executes. Otherwise, it terminates. while loops are useful when the number of iterations is unknown, such as waiting for a condition to change or continuously processing user...