Flow Control

Für mehr Kontrolle in For- und While-Schleifen sorgen die folgenden Anweisungen:

break - bricht eine Schleife frühzeitig ab

continue - überspringt die aktuelle Iteration. Der Rest der Schleife wird jedoch weiter ausgeführt

pass - ignoriert eine Bedingung und führt die Schleife weiter aus

# Normale Schleife
print('Start Loop\n')

for number in range(10):
    print('Number is ' + str(number))

print('\n End Loop')

Start Loop

Number is 0
Number is 1
Number is 2
Number is 3
Number is 4
Number is 5
Number is 6
Number is 7
Number is 8
Number is 9

 End Loop

# Break
print('Start Loop\n')

for number in range(10):
    if number == 5:
        break    
    print('Number is ' + str(number))

print('\n End Loop')

Start Loop

Number is 0
Number is 1
Number is 2
Number is 3
Number is 4

 End Loop

# Continue
print('Start Loop\n')

for number in range(10):
    if number == 5:
        continue    
    print('Number is ' + str(number))

print('\n End Loop')

Start Loop

Number is 0
Number is 1
Number is 2
Number is 3
Number is 4
Number is 6
Number is 7
Number is 8
Number is 9

 End Loop

# Pass
print('Start Loop\n')

for number in range(10):
    if number == 5:
        pass    
    print('Number is ' + str(number))

print('\n End Loop')

Start Loop

Number is 0
Number is 1
Number is 2
Number is 3
Number is 4
Number is 5
Number is 6
Number is 7
Number is 8
Number is 9

 End Loop

Pass

pass wird häufig auch als Platzhalter eingefügt wenn beispielweise Funktionen noch nicht implementiert sind.

def my_function():
    pass

my_function()