Зміст курсу

Learn Python from Scratch

1. The basics

Hello, World!Hello, me!Variables Comments Indentation Numbers and strings

2. Arithmetic operations

Addition Multiplication and power Division and whole part division

3. Common data types

Data types Numbers float and int Storing text Strings slicing Concatenation

4. Conditional statements

Boolean data type Combining conditions Simple if/else expressions (1/2)Simple if/else expressions (2/2)If/else expressions with multiple conditions (1/2)If/else expressions with multiple conditions (2/2)

5. Other data types

Lists (1/3)Lists (2/3)Lists (3/3)Tuples (1/3)Tuples (2/3)Tuples (3/3)Dictionaries (1/2)Dictionaries (2/2)

6. Loops

while loop (1/2)while loop (2/2)for loop (1/5)for loop (2/5)for loop (3/5)for loop (4/5)for loop (5/5)

7. Functions

Built-in functions Writing your own functions (1/5)Writing your own functions (2/5)Writing your own functions (3/5)Writing your own functions (4/5)Writing your own functions (5/5)lambda functions

while loop (1/2)

Sometimes you need your code to run all the time when the condition holds. For example, in real life, we don't quit the metro train till we reach our station. I.e. if we need "Station B" we will miss "Station A", "Station C" and so on, until we reach "Station B". In Python you can write something like this using while loop:


              12
            
while condition:
  do

For example, we can print all the numbers to 10.


              1234567
            
# assign starting number
i = 1

# while loop will print all the numbers to 10
while i < 10: # condition
  print(i) # action
  i = i + 1 # increasing variable

You might notice, that we use i = i + 1 inside the loop. If we didn't specify that, our loop would be infinite, as every time it checked condition it got 1 < 10, which is True. Be careful while using this type of loop in order not to make your code execution infinite.

Завдання

Create variable i with value 1.
Using while loop print all the numbers less than 10 squared. Do not forget to increase your number on each step!

Перейдіть на комп'ютер для реальної практикиПродовжуйте з того місця, де ви зупинились, використовуючи один з наведених нижче варіантів

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 6. Розділ 1

while loop (1/2)


              12
            
while condition:
  do

For example, we can print all the numbers to 10.


              1234567
            
# assign starting number
i = 1

# while loop will print all the numbers to 10
while i < 10: # condition
  print(i) # action
  i = i + 1 # increasing variable

Завдання

Create variable i with value 1.
Using while loop print all the numbers less than 10 squared. Do not forget to increase your number on each step!

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 6. Розділ 1

while loop (1/2)


              12
            
while condition:
  do

For example, we can print all the numbers to 10.


              1234567
            
# assign starting number
i = 1

# while loop will print all the numbers to 10
while i < 10: # condition
  print(i) # action
  i = i + 1 # increasing variable

Завдання

Create variable i with value 1.
Using while loop print all the numbers less than 10 squared. Do not forget to increase your number on each step!

Все було зрозуміло?

Дякуємо за ваш відгук!


              12
            
while condition:
  do

For example, we can print all the numbers to 10.


              1234567
            
# assign starting number
i = 1

# while loop will print all the numbers to 10
while i < 10: # condition
  print(i) # action
  i = i + 1 # increasing variable

Завдання

Create variable i with value 1.
Using while loop print all the numbers less than 10 squared. Do not forget to increase your number on each step!

Секція 6. Розділ 1