Python basic syntax

Python basic Syntax 1. First Python code

print(‘Hello Word!‘)

2. Notes

1. Definition: annotation is interpreted, mainly used to prompt the relevant code information.

2. Annotation Categories: single-line comments and multiline comments

单行注释：# 注释内容多行注释:‘‘‘ 注释内容 ‘‘‘ 或 """ 注释内容 """

3. Variables

1. Definition: variable is the amount that can be changed

2. Naming rules:

1.汉字变量名能用，不推荐使用2.数字不能开头3.不可以使用特殊字符，除_4.变量区分大小写5.可以使用关键字，但不推荐使用6.常用_和驼峰法，但不推荐两种类型一起使用

3. Format:

变量名 = 值例：gf = ‘grilfriend‘

Note: Multiple variables can be endowed with the same value, and the previous assignment will be washed out when the same variable is assigned again.

4. Indent

The important sign of Python's writing format is indentation, which is indented to 4 spaces, and the same level of content uses the same indentation.

Python basic syntax