Using conditional statements (if statements) to make conditional judgments in Python is a common programming technique

Using conditional statements (if statements) to make conditional judgments in Python is a common programming technique. Through if statements, we can execute different code blocks based on different conditions. This article will introduce in detail how to use if statements in Python and provide corresponding source code examples.

The basic syntax of the if statement is as follows:

if condition:
    # 在条件满足时执行的代码块
else:
    # 在条件不满足时执行的代码块

In this syntax, conditionis a Boolean expression that is used to determine whether a specific condition is met. If the condition is True, ifthe code in the code block is executed; otherwise, elsethe code in the code block is executed.

Here is a simple example that demonstrates how to use an if statement to determine whether a number is positive:

num = 10

if num > 0