while...else 有点类似于 if...else，这里需要知道的是一遇到 else，就意味着已经不在 while 循环内...
带else和break的while old_boy_age ="40"count =0whilecount <3:# 此处把上一代码的if判断提前guess_age =input("Guess age is : \n")ifguess_age == old_boy_age:print("Bingo")breakelifguess_age > old_boy_age:print("Higher! Guess lower")else:print("Lower! Guess higher")# 一般在所有判...
counter= 1whilecounter <= 100:sum= sum +counter counter+= 1print("1 到 %d 之和为: %d"% (100, sum)) while 循环使用 else 语句 如果while 后面的条件语句为 false 时,则执行 else 的语句块。 while语法格式如下: while<expr>:<statement(s)>else: # expr 条件语句为false,则执行<additional_st...
1 #while True 判定为真则打印xxx,如果没有break,将一直打印 2 3 count = 0 4 while True: 5 print("海枯石烂也不停息...",count) 6 count +=1 1. 2. 3. 4. 5. 6. 给海枯石烂个终点 1 count = 0 2 while True: 3 print("海枯石烂也不停息...",count) 4 count +=1 5 if count ...
\n", loop_num); } } 大家只需要看for这一栏,大部分语言的for和C的for长得很像,可以说for是一个简化版的while循环,但是Python很有趣,其for循环必须长这样: for <variable> in <sequence>: #code here Python的for是直接对序列中每一个元素进行读取处理,并不需要控制变量或者条件判断(可以这么理解,但是...
while 后面的else 作用是指,当while 循环正常执行完,中间没有被break 中止的话,就会执行else后面的语句 举个例子 count = 0 while count <= 5: count += 1 print('loop',count) else: print('循环正常执行完毕') print('---out of while loop---') 1. 2...
While loop inside for loop for loop in one line Accessing the index in for loop Iterate String using for loop Iterate List using for loop Iterate Dictionary using for loop What is for loop in Python In Python, theforloop is used to iterate over a sequence such as alist, string,tuple, ...
while循环和for循环可以相互嵌套 循环嵌套的执行过程 一次外循环对应着一次完整的内循环 问题:打印99乘法表 代码语言:javascript 代码运行次数:0 运行 AI代码解释 # 打印99乘法表foriinrange(1,10):# 控制行forjinrange(1,i+1):# 控制列print('{}*{}={}'.format(j,i,i*j),sep='',end='\t')print...
1. True、False2. and、or、not3.class4.is、in5.try、except、finally、raise6.if、elif、else7.def、global、nonlocal、return、yield8.for、while9.break、continue10.assert11.del12.import、from、 as13.with14.pass15.await、async16.lambda 1. True、False False 布尔类型的值，表示假，与True相反 ...
When to use for Loop Anytime you have need to repeat a block of code a fixed amount of times. If you do not know the number of times it must be repeated, use a “while loop” statement instead. For loop Python Syntax The basic syntax of the for loop in Python looks something simil...