GithubHelp home page GithubHelp logo

python-charm's Introduction

python-charm

Python Python是一种高级编程语言,最初由Guido van Rossum于1991年开发,现在由Python软件基金会维护。Python具有简洁易读的语法、动态类型、垃圾回收、强大的标准库和丰富的第三方库,被广泛应用于Web开发、科学计算、人工智能、数据分析等领域。

安装Python 在开始Python编程之前,需要先安装Python。Python可以从官方网站python.org上下载,也可以使用包管理器(如apt、yum、brew等)在命令行中安装。

安装Python后,可以在命令行中输入python命令来进入Python交互模式,或者使用文本编辑器编写Python脚本并执行。

基本语法 变量 在Python中,变量是动态类型的,可以随时改变其类型和值。定义变量时不需要指定类型,Python会自动推断。

python Copy code x = 1 y = 2.0 z = "hello" 数据类型 Python支持多种内置数据类型,包括整数、浮点数、布尔值、字符串、列表、元组、字典等。这些数据类型可以进行各种操作,如算术运算、比较运算、逻辑运算、索引、切片等。

python Copy code a = 1 + 2 # 整数加法 b = 3.14 - 1 # 浮点数减法 c = True and False # 逻辑与 d = "hello" + "world" # 字符串拼接 e = [1, 2, 3] # 列表 f = (4, 5, 6) # 元组 g = {"name": "Tom", "age": 20} # 字典 条件语句 Python中的条件语句可以使用if、elif、else关键字来实现。条件语句根据条件表达式的值来决定执行哪个分支。

python Copy code x = 10 if x > 0: print("x is positive") elif x == 0: print("x is zero") else: print("x is negative") 循环语句 Python中的循环语句可以使用for、while关键字来实现。for循环可以遍历列表、元组、字典等可迭代对象;while循环可以在满足条件的情况下重复执行一段代码块。

python Copy code

for循环遍历列表

fruits = ["apple", "banana", "cherry"] for fruit in fruits: print(fruit)

while循环计算斐波那契数列

a, b = 0, 1 while b < 100:

python-charm's People

Contributors

vagmr avatar

Watchers

 avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.