Character (the information stored stuff) encoding ()
Keyboard is the current transmission - a "host (master) is received by the current (as 01010101010) -" is displayed to accept the computer (as 01010101010-- "keyboard)
encoding: 01010101010 -" Keyboard
Process text editor to store information
Text Editor - "write text -" to store information
Display (memory) - "(conversion) hard disk
Chinese - "00101101001010
english-》111110000
Toilet paper - "00,000,011,111
Early American talent with computer
0->a
1->b
ascii coding - "The Americans
# ascii编码的转换关系的方法
print(chr(65))
print(ord('a'))Japan has its own code. South Korea, China has also been - "gb2312
This time there have been unicode encoded (corresponding to a relationship)
unicode encoded nations may know
No matter what format your hard drive lying encoded files, unicode can be identified.
Assumption Japanese file from the hard disk to read Japanese encoding, then unicode recognition, unicode help you convert gb2312,
To solve the garbage problem with unicode storage, unicode by taking, after the code is unicode
But unicode save time space, so there utf8 (unicode and only one correspondence) - "solve the problem unicode memory footprint
Now the computers are so - "** unicode memory load, store by store utf8 (hard), people around the world to write code / write documents are utf8
Memory Why not utf8? uf8 and gb2312 / encoding Japan relations are not converted, so the memory to be used for unicode
Future Sooner or later, the memory use utf8
Gbk gb2312 and the difference
gb1312 -> common words
gbk -> All words
This notebook windows system default encoding is gbk, all except utf8
What to write code, you read what encoding
Written utf8, deposit with utf8, read with gbk-- "garbled
Written utf8, deposit with gbk-- "garbled. Reading with - "
Encoding and decoding
unicode encoding - "(code) from memory to the hard disk UTF8
utf8 - "(decoding) from the hard disk into memory Unicode
Memory is now only unicode encoding
python interpreter (text editor) python code interpretation process
python2 default coding head is ascii, python3 default utf8-- "1, python interpreter corresponding to a text editor, the code is read into interpreter python - -" character code "
中文 # gbk编码的中文加2, identification code - "print meaningful -" syntax problem
# coding:gbk # 告诉python解释器用gbk去完成第一步，读入字符
中文3, produce a result - "go Terminal -" character encoding
Terminal has a feature: What is your computer coding, coding what would follow, windows terminal is gbk
In addition to coding error codes, first add # - * coding: utf8 * -