def evens(array):
newarray=[]
for i in range(len(array)):
if i%2==1:
newarray.append(array[i])
print(newarray)
def goodevens(array):
print(array[1::2]) #这个不用说,good!
evens(['a', 'b', 'c', 'd', 'e'])
evens([1,2,3,4,5])
goodevens(['a', 'b', 'c', 'd', 'e'])
goodevens([1,2,3,4,5])
#['b', 'd']
#[2, 4]
#['b', 'd']
#[2, 4]
a='C0C++2C#3Python4Java6php'for i in a:
if i in '0123456789':
print(i)