To run the statements in this file, you need to start a Python interpreter and tell it to read and process the contents of the file.
要运行本文件中的语句，您需要启动一个Python解释器，并让它去读取和处理文件的内容。
When you type them into the Python interpreter (or if you save them in a file and execute them as a Python program), the statements are read starting on the left side and progressing to the right.
当把它们键入Python解释器中(或者将它们保存在一个文件中，并作为一个Python程序来执行)时，读取语句的顺序是从左到右。
Since the best way to learn a language is to use it, the tutorial invites you to play with the Python interpreter as you read.
学习一门语言最好的方法就是使用它，本指南推荐你边读边使用Python解释器练习。
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