python slučky
#x starts at 1 and goes up to 80 @ intervals of 2
for x in range(1, 80, 2):
print(x)
pre python slučky v rozsahu
#there are two possibilities for a for loop
#first one is with a range()
#range() just generates lists after the following pattern
print(range(4))
>>> [0,1,2,3]
print(range(1,4))
>>> [1,2,3]
print(range(2,10,2))
>>> [2,4,6,8]
#and what the for does then is that it lets a variable (in my example x) cycle trough the list given after in
for x in range(2,10,2):
print(x)
>>> 2
>>> 4
>>> 6
>>> 8
#so the code in the loop gets executed for every value in the given list after in
#you can also use for ... in for custom lists
#example 1:
list1 = [1,2,50,2]
for x in list1:
print(x)
>>> 1
>>> 2
>>> 50
>>> 2
#example 2
list2 = ["bananas", "apples", "pears"]
for x in list2:
print(x)
>>> "bananas"
>>> "apples"
>>> "pears"
python pre slučku
words=['zero','one','two']
for operator, word in enumerate(words):
print(word, operator)
python pre slučku
for i in range(5):
print(i)
# Output:
# 0
# 1
# 2
# 3
# 4
my_list = ["a", 1, True, 4.0, (0, 0)]
for i in my_list:
print(i)
# Output:
# a
# 1
# True
# 4.0
# (0, 0)