Introduction to Python

Form 3 - Computer

2023-2024

Floor 4 - Computer Room

Mr. Peter

Outline

Outline

While Loop

1

Number Sequences

2

Exercises

3

While Loop Statement

1.

2.

Tab

while Condition :

Command1

While Loop Statement

1.

2.

while i < 5 :

3.

Tab

4.

Tab

i = 0

print(i)

i = i + 1

Write a Python program that prints a cross pattern of stars with a fixed size of 10 lines.

Question

While loop statement - Ex01

Example

Save the file as "XX_YYYY_Ex01.py"

StringRepeat = ( x \times Space ) + Asterisk + ( y \times Space ) + Asterisk 
     *
    * *
   *   *
  *     *
 *       *
*         *
 *       *
  *     *
   *   *
    * *
     *

Write a Python program that prints a cross pattern of stars with a fixed size of 10 lines.

Question

While loop statement - Ex02

Example

Save the file as "XX_YYYY_Ex02.py"

StringRepeat = ( x \times Space ) + Asterisk + ( ( y - 2 ) \times Asterisk )
*         *
 *       *
  *     *
   *   *
    * *
     *
    * *
   *   *
  *     *
 *       *
*         *