[Python基础]001.Python准备

Python准备

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• Python简介

• 使用版本

• 环境安装

• 编写第一个Python文件

• 编辑器选择

Python简介

• Python是一种简单易学，功能强大的编程语言，它有高效率的高层数据结构，能简单而有效地实现面向对象编程。
• Python简洁的语法和对动态输入的支持，再加上解释性语言的本质，使得它在大多数平台上的很多领域都是一个理想的脚本语言，特别适用于快速的应用程序开发。
• 应用范围
  • 系统编程
  • 图形处理
  • 数学处理
  • 文本处理
  • 数据库编程
  • 网络编程
  • Web开发
  • 多媒体应用
• 官方网址：www.python.org

使用版本

• 目前Python有两个并存版本，Python2.x和Python3.x，两个版本的Python都在更新。
• 目前Python2.x更加成熟，有更多第三方库可以使用。
• 我们使用Python2.x进行开发。

环境安装

1. 下载Python2.7.x，www.python.org/downloads/
2. 双击安装
3. 打开命令行，执行python -V，显示你所下载的Python版本则说明安装成功。
4. 在命令行执行python，进入Python的解释器。
5. 这时就可以输入我们的第一个python语句：print 'Hello World!'，回车运行。
   

编写第一个Python文件

1.新建文件main.py，写入

 # -*- coding: utf-8 -*-
 print 'Hello Python!'  

保存退出。

2.执行python main.py。

编辑器选择

• IDLE：Python自带的开发Python程序的基本IDE。Python安装好后就自动安装好了。前期学习可以使用。
• Sublime：轻量级开发工具，配合Python插件，很方便，推荐。
• Eclipse + PyDev：重量级的Eclipse，配合Pydev插件。功能全面，适合后期应用程序的开发。
• Pycharm：Eclipse的对手JetBrains打造的一款Python IDE，功能与Eclipse一样全面，特别适合Web开发，如Django。
• 其他: Vim, notepad++等。

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本站文章为宝宝巴士 SD.Team原创，转载务必在明显处注明：（作者官方网站：宝宝巴士) 
转载自【宝宝巴士SuperDo团队】 原文链接: http://www.cnblogs.com/superdo/p/4476735.html

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