Python Variables, Data Types, and Basic Operations
Installnig Packages with pip
pip install -i https://pypi.douban.com/simple package_name
Variables and Data Types
Defining Variables
In programming, variables act as containers to store data. For example, when adding two numbers, you first store them in variables and then perform the operation.
value_one = 100
value_two = 87
total = value_one + ...
Posted on Sat, 24 Oct 2026 16:27:51 +0000 by if
Understanding Conditional Logic and While Loops in Python
Conditional Statements
The if statement executes a block of code if a specified condition evaluates to true.
if 5 > 1:
print('Condition holds true')
Use elif (else if) to specify a new conidtion to test if the previous condition was false.
user_name = input('Enter your username: ')
years = int(input('Enter your age: '))
if user_name == ...
Posted on Thu, 27 Aug 2026 16:51:23 +0000 by stageguys
Python Control Flow: Conditional Logic and Iteration
Conditional Statements
An if statement evaluates a boolean predicate and executes its body only when the predicate resolves to True.
limit = 20
current = 15
if current < limit:
print("Within bounds")
When a binary decision is required, the else keyword defines the alternative path.
temperature = 4
if temperature <= 0:
...
Posted on Wed, 29 Jul 2026 16:23:47 +0000 by k.soule