回答編集履歴
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変更
test
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@@ -8,6 +8,10 @@
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```csharp
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var lines = System.IO.File.ReadLines("file.csv").Select(x=>x.Split(',').ToArray()).ToArray();
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var/*string[][]*/ lines = System.IO.File.ReadLines("file.csv").Select(x=>x.Split(',').ToArray()).ToArray();
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//var/*List<string[]>*/ lines = System.IO.File.ReadLines("file.csv").Select(x=>x.Split(',').ToArray()).ToList();
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// var lines = System.IO.File.ReadLines("file.csv").Select(x=>x.Split(',')); //仕様が練れてないならこうしとくのがいいと思う
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```
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