枚举()是什么意思?什么for row_number, row in enumerate(cursor):用Python做的?什么enumerate在这种情况下意味着什么?
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enumerate
enumerate
list_of_letters = ['a', 'b', 'c']for i in range(len(list_of_letters)): letter = list_of_letters[i] print (i, letter)
0 a1 b2 c
enumerate
i = 0for n in list_of_letters: print (i, n) i = i +1
enumerate
list_of_letters = ['a', 'b', 'c']for i, letter in enumerate(list_of_letters): print (i, letter)
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