我怎样才能在屏幕上枚举 object

Question

I want to write screen Capital letters and index numbers in word="WElCMMerC".For example [(0,W),(1,E),(3,C),(4,M),(5,M)...]

def cap(word):

    w=list(enumerate(i) for i in word if i!=i.lower())
    print (w)

print(cap("WElCMMerC"))

Answer 1

You can loop over the result of enumerate , and keep only those which have an uppercase letter (using isupper to check for that), and return the list w , don't print inside the function:

def cap(word):
    w = [i for i in enumerate(word) if i[1].isupper()]
    return w

print(cap("WElCMMerC"))

Output:

[(0, 'W'), (1, 'E'), (3, 'C'), (4, 'M'), (5, 'M'), (8, 'C')]

Answer 2

You made a list of enumerate objects. Read the documentation: enumerate is an iterator, much like range . Rather, you need to use the enumeration.

return [(idx, letter) 
        for idx, letter in enumerate(word)
            if letter.isupper()]

In English:

Return the pair of index and letter
for each index, letter pair in the word
    but only when the letter is upper-case.