I CSDN blog column: HTTPS: //blog.csdn.net/yty_7
Github Address: https: //github.com/yot777/Python-Primary-Learning
4.1 coding identifier and comments
4.2 line and indented
4.1 coding identifier and comments
By default, the Python. 3 source files to UTF-8 encoding, all strings are unicode string
Python first character of the identifier must be a letter of the alphabet or underscore '_' .
The other part of the identifier letters, digits, and underscores.
Identifiers are case sensitive.
Python in Single-line comments # begin with, multi-line comment with three single quotation marks ( '' ' ), or three double quotation marks ( "" " ) to enclose comments.
4.2 line and indented
And most programming languages have a specific line endings different , Python use indentation and line breaks to represent the hierarchical structure of the code. The number of spaces to indent is variable, but with a Python all statements in the file must contain the same number of spaces to indent.
In an example, each of the custom . 4 spaces as a layer structure
4 * 2 spaces is a second layer structure
4 * . 3 spaces is the third layer structure
This principle must be maintained throughout the program
Not at liberty to indent
Reference Tutorial:
Liao Xuefeng of Python tutorials
https://www.liaoxuefeng.com/wiki/1016959663602400
Liao Xuefeng's Java Tutorial
https://www.liaoxuefeng.com/wiki/1252599548343744
Python3 Tutorial | Tutorial rookie
https://www.runoob.com/python3/
If you feel Benpian chapter has helped you, welcome attention, comments, thumbs up! Github welcome you Follow, Star!
