1. Boolean Values
Meaning: Represents true or false in judgments, generally used in conditional tests.
a = True
print(a)
print(10 < 5)
print(10 > 8)
# output
True
False
True
Original...About 1 min
project name
project detailed description
link name
link detailed description
book name
Detailed description of the book
article name
Detailed description of the article
friend name
Detailed description of friend
custom item
Detailed description of this custom item
Original...Less than 1 minute
1. Creating a Tuple
- Use parentheses to create a tuple.
- Separate elements with commas.
tup = (2, "x", "y")
print(tup, type(tup))
# output
(2, 'x', 'y') <class 'tuple'>
Original...About 2 min
1. How to Create a Phone Book
Suppose we have the following contacts:
| Name | Phone Number |
|---|---|
| 李雷 | 123456 |
| 韩梅梅 | 132456 |
| 大卫 | 154389 |
| Mr.Liu | 131452 |
| Bornforthis | 180595 |
| Alexa | 131559 |
Original...About 5 min
1. Creating a Set
- Directly use curly braces to create.
set1 = {1, 2, 3, 4, 5}
Original...About 1 min
1. List Structure
- Use square brackets to represent lists.
- Elements inside the list are separated by commas.
- Note that it is in the English input method.
Original...About 9 min
Submission instructions
- You should submit your homework on GitHub.
- For this assignment you should turn in 4 separate
.pyfiles named according to the following pattern:hw1_q1.py,hw1_q2.py, etc. - Each Python file you submit should contain a header comment block as follows:
Original...About 12 min
Session 1 – Introduction (Dec. 22nd)
Original...Less than 1 minute
1. Characteristics of Numeric Types
In [2]: 1+1
Out[2]: 2
In [3]: 1+1.0
Out[3]: 2.0
In [4]: 9-1
Out[4]: 8
In [5]: 9-1.0
Out[5]: 8.0
In [6]: 2*2
Out[6]: 4
In [7]: 2*2.0
Out[7]: 4.0
In [8]: 9/3
Out[8]: 3.0
In [9]: # If one of the numbers is float, the result will be float (highest priority)
In [10]: # Division involves precision issues, so the result is a float
Original...About 5 min
1. Definition of Strings
A string is a sequence composed of letters, numbers, and special characters.
2. Creating Strings
— Using single quotes, double quotes, or triple quotes.
Original...About 12 min