---
title: "DataTypes（データ型）"
content_type: tutorial
url: "https://learn.unity.com/tutorial/datatypes-detaxing?language=ja"
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difficulty: beginner
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last_updated: "2026-08-04T14:24:18.000Z"
---

# DataTypes（データ型）

Value 型と Reference 型の違いを学び、C# の変数の振る舞いをより正確に理解します。

変数の仕組みをより深く理解するために、Value データ型と Reference データ型の重要な違いをご紹介します。

本チュートリアルは [Beginner Scripting プロジェクト](https://learn.unity.com/project/beginner-gameplay-scripting)に含まれています。

前回のチュートリアルは：[Delta Time](https://learn.unity.com/tutorial/delta-time?projectId=5c8920b4edbc2a113b6bc26a)

次のチュートリアルは：[Classes](https://learn.unity.com/tutorial/classes-5?projectId=5c8920b4edbc2a113b6bc26a)

## Data Types（データ型）

[Video](http://www.youtube.com/watch?v=IVcx-tSxjys)

## **DatatypeScript**

```csharp
using UnityEngine;
using System.Collections;

public class DatatypeScript : MonoBehaviour 
{
    void Start () 
    {
        //Value type variable
        Vector3 pos = transform.position;
        pos = new Vector3(0, 2, 0);
        
        //Reference type variable
        Transform tran = transform;
        tran.position = new Vector3(0, 2, 0);
    }
}
```