【Engineering】Encode

ASCII is a simple form of Unicode text, but just one of many possible encodings and alphabets. Text from non-English-speaking sources may use very different letters, and may be encoded very differently when stored in files.

ASCII

ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices. Most modern character-encoding schemes are based on ASCII, although they support many additional characters.

...

Posted by Wei on 2019-09-20, Last Modified on 2024-05-02

【Python】Basics - Simple Data Types - String

String

Strings in Python can be enclosed in either single quotes (’) or double quotes ("), or three of each (’’’ or “”")
Double quoted strings can contain single quotes inside them, as in "Bruce's beard"
and single quoted strings can have double quotes inside them, as in 'The knights who say "Ni!"'
triple quoted strings: strings enclosed with three occurrences of either quote symbol (either single or double quotes)
can even span multiple lines

...

Posted by Wei on 2019-09-20, Last Modified on 2024-05-07

【Python】Basics - Variables

Assignment statement

Assignment statement gives a value to a variable:

assignment token: =
equals: ==

Ask the interpreter to evaluate a variable

...

Posted by Wei on 2019-09-19, Last Modified on 2024-05-02

【Python】Basics - Exceptions

Using try-except Blocks

When you think an error may occur, you can write a try- except block to handle the exception that might be raised. You tell Python to try running some code, and you tell it what to do if the code results in a particular kind of exception.

Here’s what a try- except block for handling the ZeroDivisionError exception looks like:

try:
		print(5/0) 
except ZeroDivisionError:
		print("You can't divide by zero!")

...

Posted by Wei on 2019-09-18, Last Modified on 2024-05-07

【Python】IO - WriteFiles

Writing to an Empty File

To write text to a file, you need to call open() with a second argument telling Python that you want to write to the file. To see how this works, let’s write a simple message and store it in a file instead of printing it to the screen:

filename = 'programming.txt'

with open(filename, 'w') as file_object:
		file_object.write("I love programming.")

The second argument, ‘w’, tells Python that we want to open the file in write mode. You can open a file in read mode (‘r’), write mode (‘w’), append mode (‘a’), or a mode that allows you to read and write to the file (‘r+’). If you omit the mode argument, Python opens the file in read-only mode by default.

...