主体以缩进开始,第一条未缩进的线标记结束。 Python将任何非零值解释为True。None并且0被解释为False。 While循环流程图 Python中while循环的流程图 示例:Python while循环 示例 # 添加自然数的程序# 数字最多# sum = 1+2+3+...+n# 从用户那里获取输入# n = int(input("Enter n: "))n = 10# 初始化...
while迴圈是你編寫程式語言的得力助手,有了while迴圈你可以讓Python依照你設定的條件執行指定的事。 對初學者而言,while迴圈可能不是很好懂的語法,透過實作練習觀念才會慢慢融會貫通,如果想透由小型專題練習,熟悉Python while 迴圈,推薦使用《Python 自動化的樂趣(第2版)》,在學習如何設計猜數字、剪刀石頭布的遊戲...
Pythonwhileloop withbreakstatement We can use abreak statementinside awhileloop to terminate the loop immediately without checking the test condition. For example, whileTrue: user_input =input('Enter your name: ')# terminate the loop when user enters endifuser_input =='end':print(f'The loop ...
/usr/bin/python# -*- coding: UTF-8 -*-var=1whilevar==1:# 该条件永远为true,循环将无限执行下去num=raw_input("Enter a number :")print"You entered:",numprint"Good bye!" 以上实例输出结果: Entera number:20Youentered:20Entera number:29Youentered:29Entera number:3Youentered:3Entera numb...
Loops are used to repeatedly execute a block of program statements. The basic loop structure in Python is while loop. Here is the syntax. Syntax: while (expression) : statement_1 statement_2 ... The while loop runs as long as the expression (condition) evaluates to True and execute the...
Pythonguess.py fromrandomimportrandintLOW,HIGH=1,10secret_number=randint(LOW,HIGH)clue=""# Game loopwhileTrue:guess=input(f"Guess a number between{LOW}and{HIGH}{clue}")number=int(guess)ifnumber>secret_number:clue=f"(less than{number})"elifnumber<secret_number:clue=f"(greater than{number}...
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...
Day1_Python基础_15.while loop 有一种循环叫死循环,一经触发,就运行个天荒地老、海枯石烂。 海枯石烂代码 count =0whileTrue:print("你是风儿我是沙,缠缠绵绵到天涯...",count) count+=1 其实除了时间,没有什么是永恒的,死loop还是少写为好
5- Create a numpy array using the values contained in “mylist”. Name it “myarray”. 1importnumpy as np2myarray=np.array(mylist)3myarray 6- Use a “for loop” to find the maximum value in “mylist” 1maxvalue =mylist[0]2foriinrange(len_mylist):3ifmaxvalue <mylist[i]:4ma...
Python while loops are also used for unlimited iterations. Some well-known examples are ATMs, the Linux command prompt and the Python Read-Eval-Print loop (REPL). Below we show a sketch of an REPL implementation using an infinite while loop. # Loop while True: # Read user input user_inpu...