11.range(n,n2): from n, but n2 not included.
res = []
for i in range(2700, 3201):
if (i%7 ==0 ) and (i%5 != 0):
res.append(str(i))
print(', '. join(res))
12. filter(function,iterable)： Construct an iterator from those elements of iterable for which function returns true.
iterable may be either a sequence, a container which supports iteration, or an iterator.
Note that filter(function,iterable) is equivalent to the generator expression (item for item in iterable if function(item))
li = [1,2,3,4,5,6,7,8,9,10]
print(list(filter(lambda x: x%2==0, li)))
abs(x) : absolute value of a number
all(iterable): ReturnTrueif all elements of theiterableare true (or if the iterable is empty)
13. map(function, iterable)
list1 = [1,2,3]
return_list = list(map(lambda x:pow(x, 2), list1))
print(return_list) ###[1,4,9]
14. enumerate(iterable, start=0): returns an enumerating object, which is a tuple or list containing the count (from the number of 'start') and values obtained from the iterating over the 'iterable';
