Today, the editor brings the Getting Started with Python，welcome to visit!一、if语句 if语句表如果，如果满足某某条件，则执行后面得代码。格式为“ if 条件: ”。需要注意的是，满足条件后执行的代码是if语句下面缩进的代码，没有缩进的代码不在if语句的体系内，无论满不满足都会执行。if statement table I...
What Does if __name__ == "__main__" Mean in Python? Theif __name__ == "__main__"idiom is a Python construct that helps control code execution in scripts. It’s a conditional statement that allows you to define code that runs only when the file is executed as a script, not ...
By understanding Python conditions, you will be able to write more complex and powerful programs.We hope this article has been helpful in explaining Python conditions. If you have any questions or comments, please feel free to leave them below....
速度慢,Python 的运行速度相比C语言确实慢很多,跟JAVA相比也要慢一些,因此这也是很多所谓的大牛不屑于使用Python的主要原因,但其实这里所指的运行速度慢在大多数情况下用户是无法直接感知到的,必须借助测试工具才能体现出来,比如你用C运一个程序花了0.01s,用Python是0.1s,这样C语言直接比Python快了10倍,算是非常夸张...
In Python, conditional statements control the flow of a program by making decisions based on the given conditions. These statements help in determining the execution of the programs by evaluating the conditions, such as True or False. This helps in making the Python program more interactive, as ...
The output of both programs will be the same.Output 1Enter a number: 2 Positive number Output 2Enter a number: 0 Zero A number is positive if it is greater than zero. We check this in the expression of if. If it is False, the number will either be zero or negative. This is also...
在使用import random模块时出现Python if语句错误可能有多种原因,以下是一些可能的解决方案: 1. 语法错误:请确保if语句的语法正确,包括正确的缩进和冒号的使用。在Python中...
Theif __name__ == "__main__": ...trick exists in Python so that our Python files can act as either reusable modules, or as standalone programs. As a toy example, let's say that we have two files: mumak:~ dyoo$ cat mymath.py ...
Python programs must be able to run different branches of code in different situations. This is usually accomplished through the use of conditional statements, which determine the control flow through a program. Python’s if statement is used to decide whether or not some code should run. This ...
In this step-by-step course you'll learn how to work with conditional ("if") statements in Python. Master if-statements step-by-step and see how to write complex decision making code in your programs.