Conversion between encoding and decoding of strings in Python3 and encoding (decode, encode)

One, the code

Second, encoding and decoding

The default encoding for the py file in Python3 is Urf-8. But the encoding of the string is Unicode.

Because Unicode uses 32-bit 4 bytes to represent one character, storage and transport are too wasteful, so they are transmitted and stored with non-Unicode encoding.

In the future .....

Third, Util

Subsequent....

Conversion between encoding and decoding of strings in Python3 and encoding (decode, encode)