Notes/Documents/Arbeit/IFN/Programmieren WiSe 25 26/Vorlesungen/07.11.2025.md

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title	timestamp	reason	tags	feature	thumbnail
07.11.2025 - Calendar	07.11.2025 - 13:40	Vorlesung 2	Calendar Vorlesung	Templates/assets/logo.png	thumbnails/resized/e3f80df020cca3c2d7e2ffdc7d968e79_86cf658e.webp

07.11.2025

Tasks

• Ablauf planen
• Beispiele planen

Ablauf

• Comments

# This is a Comment

"""This is a Docstring"""
'''This is also a Docstring'''

• Variablen

var = 5 # a Variable which holds the Number 5

• Print
  • String
  • f-String

'Single Quote String'
"Double Quote String"

txt = 'String'
f'This is a format-{txt}'
f"This is a format-{txt}"

• Datentypen
  • Bool
  • Int
  • Float

flag = True | False
num = 1 | -1
price = 3.141 | -inf

• Rechenoperationen
  • Addition
  • Subtraktion
  • Multiplication
  • Exponentiation
  • Division
  • Ganzzahldivision
  • Ringarithmetik

5 + 4 = 9
5.0 + 4 = 9.0
0.25 - 1 = -0.75
2*2 = 4
2**24 = 16.777.216
10 / 3 = 3.33
10 % 3 = 1
10 // 3 = 3

• If/Else

if 4 < 3:
	print(True)
elif 5 < 4:
	print("Hello")
else:
	num = 7

• For/While - Loop

for i in range(0,10,2):
	print(i)
	
i = 0
while i < 10:
	print(i)
	i += 2

• assert

assert num > 3 "Num must be greater than 3" 

Beispiele

import sys
def fn():
	sys.stdout.flush()
	return sys.stdin.readline()
    
num = {0: fn, 1: fn}[int(bool(sys.stdout.write("Enter a number: ")))]()

for print in {sys.stdout.write}:
	print(f"Your number is: {num}\n")

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