a quiz

Question

Your job is to write a function which increments a string, to create a new string. If the string already ends with a number, the number should be incremented by 1. If the string does not end with a number the number 1 should be appended to the new string.
Examples:
foo -> foo1
foobar23 -> foobar24
foo0042 -> foo0043
foo9 -> foo10
foo099 -> foo100
Attention: If the number has leading zeros the amount of digits should be considered.

Answer 1

def increment_string(str_):
num = 0
for i, s in enumerate(str_):
if s.isdigit():
num = str_[i:]
s = str_[:i]
break
if num == 0:
return str_ + '1'
else:
return s + str(int(num)+1).zfill(len(num)) #'abc'.zfill(4) = 0abc
print(increment_string('foo099'))

Answer 2

Are you having some issue with that task? Liu zirui

Answer 3

def increment_string(str):
a =[]
for i in reversed(str):
while i.isdigit():
a.append(int(i))
break
return(a)

Answer 4

the uncompleted work