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 define an indexing variable,i, which we set to 1. ...
Print all items, using a while loop to go through all the index numbers thislist = ["apple", "banana", "cherry"]i = 0 while i < len(thislist): print(thislist[i]) i = i + 1 Try it Yourself » Learn more about while loops in our Python While Loops Chapter.Looping...
在这个例子中,我们计算了1到100之间的所有偶数的和。通过示例代码和详细解释,我们展示了如何使用while循环和if语句来实现这个目标。 参考链接: Python官方文档:https://docs.python.org/3/tutorial/controlflow.html#while-statements W3School while循环教程:https://www.w3schools.com/python/python_while_loops.asp...
1| # guessing game 2| from random import randint 3| from IPython.display import clear_output 5| guessed = False 6| number = randint(0, 100) 7| guesses = 0 9| while not guessed: 10| ans = input("Try to guess the number I am thinking of!") # use tab to indent 12| guesses +...
中断和继续语句: https://docs.python.org/3/tutorial/controlflow.html#break-and-continue-statements-and-else-clauses-on-loops 而声明: https://docs.python.org/3/reference/compound_stmts.html#while for 循环 循环的用于执行一段代码预定的次数。循环的可用于任何类型的 iterable 对象,也就是说,可由...
\n \"\"\"\n render_header(\"Lesson: Loops\")\n # Explanation similar to W3Schools style\n st.write(\n \"\"\"\n Loops are used in Python to execute a block of code repeatedly. Python supports two main types of loops:\n `for` loops and `while` loops. In this lesson, we ...
i = 1while i < 6: print(i) if i == 3: break i += 1 1. continue 语句 除了可以让循环提前整体结束,还可以提前结束某一次迭代,进行下一个迭代,如下代码所示: i = 0while i < 6: i += 1 if i == 3: continue print(i)PS E:\dreams\dream\markdown\python> & "C:/Program Files (...
forxin[0,1,2]: pass returnIt is to exit a function and return a value. defmyfunction(): return3+3 withUsed to simplify exception handling yieldTo end a function, returns a generator 参考:W3 Schools
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What you can’t do, though, is use the else clause on loops. You might be tempted to try out the for...in loop in JavaScript, thinking it would iterate over values like a Python for loop. Although it looks similar and has a similar name, it actually behaves very differently! A for...