Week 2 Learning Summary

 Week 2 subject 1: Comment your code

    # single-line comment

 

"""

Multi-line

comments

for complex 

topics

"""

• Add comment at beginning of your code

Week 2 subject 2: Further Turtle drawing

 

Week 2 subject 3: Variables

•  Variables are names for values in memory

• Use variables to enable your programs to do arbitrary jobs

• Name rules for variables

Week 2 subject 4: Python error messages

 

Week 2 subject 5: Strings

• String is a Python built-in data type.
• There are string variables and string literals.
• string literals are a sequence of characters between a pair of quotation marks.
• Use of different quotation marks: 
• escape sequences, 
• triple quotes for multi-line string literals and,
• mixed quotation marks.