回答編集履歴
2
修正
test
CHANGED
@@ -2,7 +2,7 @@
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2
2
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3
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Cat cat = new Cat();
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-
Animal animal = cat as
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+
Animal animal = cat as Animal;
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6
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animal.Voice();
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8
8
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1
キャストに変更
test
CHANGED
@@ -1,6 +1,8 @@
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1
1
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```C#
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2
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+
Cat cat = new Cat();
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+
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-
Animal animal =
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5
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+
Animal animal = cat as Cat;
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6
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animal.Voice();
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8
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