安装Python IDLE
1.前往Python官网（www.python.org）下载最新版本的Python，页面应该如下：
2.选择Download并选择所用的系统（以Windows为例）
3.选择安装的版本
4.创建一个Python文件
- 创建一个新的txt文件，将文件后缀名改为 .py 并右键选择用Python IDLE 打开（也可双击IDLE图标）
- 直接输入代码进行交互式编程（Interactive Mode Programming）
- 点击“FILE”后点击“NEW”进行脚本方式编程（Script Mode Programming）
- 对于脚本方式编程，须在写完代码后点击“RUN”运行
安装Python IDE
安装Python IDE（编译器）通常对编程本身不会造成任何影响，因此并非绝对必要。但利用 IDE 能够大幅提高编程效率，获得更好的体验。
推荐安装Visual Studio Code，或安装Anaconda用Spyder/jupter notebook编译代码
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