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| nums=[1,2,3] | |
| i=iter(nums) #listからiteratorを生成 | |
| print(next(i)) #1つずつ取り出す | |
| print(next(i)) | |
| print(next(i)) | |
| print(next(i)) #としだす要素がなくなるとStopIterationというエラーを吐く | |
| #generatorで自作iteratorを定義するには、関数を１つ作るだけ！ | |
| #ただし値を返すのにreturn文ではなくyield文を使う | |
| def gen1to3(): |