Working of if…else Statement Example: Python if…else Statement number = int(input('Enter a number: '))ifnumber >0:print('Positive number')else:print('Not a positive number')print('This statement always executes') Run Code Sample Output 1 Enter a number: 10 Positive number This statement...
In computer science, afor-loop(or simplyfor loop) is a control flow statement for specifying iteration, which allows code to be executed repeatedly。(作用:介绍了for循环是什么?) A for-loop has two parts: a header specifying the iteration, and a body which is executed once per iteration. (...
if判断条件1:执行语句1……el if判断条件2:执行语句2……el if判断条件3:执行语句3……else:执行语句4…… 实例如下: 实例 #!/usr/bin/python# -*- coding: UTF-8 -*-# 例2:elif用法num=5ifnum==3:# 判断num的值print'boss'elifnum==2:print'user'elifnum==1:print'worker'elifnum<0:# 值小...
statement1# code block for Trueelse: statement2# code block for False condition为True,代表if判断成功,执行statement1。 condition为False,代表if判断不成功,进入else情况,执行statement2。 代码示例 >>>x =5>>>ifx >0:...print("x is greater than 0")...else:...print("x is less than or equal...
一、if 的语法: #if语句的语法是if[判断条件]:<执行语句>#例如if1 < 2:print('right')#也可以执行多个语句if1 < 2:print('right')print('clever')#else语句是结合if或者elif并用的,语法格式如下if[判断条件]:<执行语句>else:< 执行语句 >#例如if1 > 2:print('right')else:print('no')#elif是...
thematch-casestatement provides an alternative for certain conditional checks. This new feature is particularly useful when you have a series of conditions to check and want to avoid the nestedif/elsestatements. Thematch-casestatement is more concise and easier to read, making your code more maint...
if...else if常常会和else连用。 其语法格式如下 if condition: statement1 # code block for True else: statement2 # code block for False 1. 2. 3. 4. condition为True,代表if判断成功,执行statement1。 condition为False,代表if判断不成功,进入else情况,执行statement2。
# just write it like this: temp = int(input()) if temp > 100: print('Boiling') else: print('Stable') # but you can make a one-line version of it: (temp > 100 and print('Boiling')) or print('Stable') #this will evaluate the value of int(input()) and it can be thought...
next=raw_input("> ")if"map"innext and"code"innext:dead("You're greed surpassed your wisdom.")elif"map"innext:print("OK, you have the map.")theobject="map"print("Now you must exit and go ahead")opening()# Moved thefunctioncall before thereturnstatementreturntheobject ...
Break语句可以跳出for和while的循环体,如果你从for或while循环中终止,任何对应的else块将不执行 Continue语句被用来告诉Python跳出当前循环块中的剩余语句,然后继续下一轮循环 Example While中使用Break 代码语言:javascript 代码运行次数:0 运行 AI代码解释 n = 5 while n > 0: n -= 1 if n == 2: break pr...