The if...else statement is used to execute a block of code among two alternatives. However, if we need to make a choice between more than two alternatives, we use the if...elif...else statement. Syntax. if condition1: # code block 1 elif condition2: # code block 2 else: # code block 3. Let's look at an example. Working of if…elif…else Statement

Python 编程中 if 语句用于控制程序的执行，基本形式为： if 判断条件： 执行语句…… else： 执行语句…… 其中"判断条件"成立时（非零），则执行后面的语句，而执行内容可以多行，以缩进来区分表示同一范围。 else 为可选语句，当需要在条件不成立时执行内容则可以执行相关语句。 Gif 演示： 具体例子如下： 输出结果为： if 语句的判断条件可以用>（大于）、< (小于)、==（等于）、>=（大于等于）、<=（小于等于）来表示其关系。 当判断条件为多个值时，可以使用以下形 …

Mar 7, 2025 · if else Statement in Python. In conditional if Statement the additional block of code is merged as else statement which is performed when if condition is false. Python if-else Statement Syntax . if (condition): # Executes this block if condition is true. else: # Executes this block if condition is false. Flow Chart of if-else Statement in Python

Mar 8, 2025 · if-elif-else statement in Python is used for multi-way decision-making. This allows us to check multiple conditions sequentially and execute a specific block of code when a condition is True. If none of the conditions are true, the else block is executed.

In this article, let’s look at various examples of using if-else statements in Python. I hope you will be able to understand the working of conditional statements by going through these examples. Let’s dive right in. 1. Example of using if-else ladder in Python. print('z is 100') print('z is 200') print('z is 300') print('z is 1000')

3 days ago · Python if else对缩进的要求. Python使用缩进来表示代码块，这是Python区别于其他许多编程语言的一个重要特点。正确的缩进对于Python程序至关重要，错误的缩进会导致语法错误或逻辑错误。 缩进规则. 一致性：同一代码块中的所有语句必须有相同的缩进级别

What Are Conditional Statements in Python? Conditional statements in Python let you execute specific blocks of code only when certain conditions are met. Think of them as the decision-makers in your code. Python offers three main types of conditional statements: if statement; if-else statement; if-elif-else statement; The Simple if Statement

Mar 7, 2025 · In Python, the if/else statement helps control the execution flow by running different blocks of code depending on whether a condition is met or not. This Python tutorial provides steps on using if/else statements, covering syntax, multiple conditions, nested statements, common mistakes, and the best practices.

There are five ways to write the if-else statement in Python: The if statement in Python is used to execute a block of code if a condition is True. The if statement is also known as the if-then statement. The if statement is a selection statement, which is …

2 days ago · In Python, the `if-else` statement is a fundamental control structure that allows programmers to make decisions based on certain conditions. This statement enables the program to execute different blocks of code depending on whether a particular condition is true or false. Understanding how to use `if-else` statements effectively is crucial for writing flexible, efficient, and logical Python ...