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pythonのfor文でリストの要素とインデックス同時に取り出す方法(enumerate関数)

Last updated at Posted at 2020-07-23

普通(?)だったら

list = ['a','b','c','d']
for i in range(len(list)):
    print(i,list[i])

と書くが
enumerate関数を使うと

list = ['a','b','c','d']
for index,value in enumerate(list):
    print(index,value)

と書ける.

実行結果
0 a
1 b
2 c
3 d

参考文献

現場で使える! Python深層学習入門 Pythonの基本から深層学習の実践手法まで

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