# Error code x = 1 total = 0 if x != 0: total += x print(total) Run Code Here, we haven't used indentation after the if statement. In this case, Python thinks our if statement is empty, which results in an error
An if/else statement in Python is a control structure that executes a block of code if a condition evaluates to True, otherwise, it executes an alternative block of code. # Code to execute if condition is Trueelse# Code to execute if condition is False Copy Example: age=int(input("Enter...
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...
if条件表达式1:条件执行体1elif 条件表达式2:条件执行体2elif 条件表达式N:条件执行体Nelse:条件执行体N+1 流程图如下: 2 多分支结构实例 运行结果如下: 五 嵌套if 1 嵌套if结构 嵌套if, 即if语句包含一个或多个if语句。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 if条件表达式1:if内层条件表达式...
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。 代码示例 >>> x = 5 >>> if x > 0: ... print("x is greater than 0") ...
if语句用来做判断,并选择要执行的语句分支。基本格式如下: 1 2 3 4 5 6 7 8 9if CONDITION1:code_block(1)elif CONDITION2:code_block(2)elif CONDITION3:...else:code_block_else 其中elif是可选的,可以有任意多个,else是可选的,表示全都不满足条件时该执行的分支。 例如:...
if num > 5: print("Bigger than 5") if num <=47: print("Between 5 and 47") Result: >>> Bigger than 5 Between 5 and 47 >>> else Statements#else 语句 An else statement follows an if statement, and contains code that is called when the if statement evaluates to False. ...
break elif condition_2: statement_block_2 else: if condition_3 statement_block_3 ...
if…elif…elseare conditional statements used inPythonthat help you to automatically execute different code based on a particular condition. This tutorial explains each statement in this Python construct, along with examples. To easily run all the example code in this tutorial yourself, you cancreate...
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 ...