# A

> 'a' key.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
A = 97
```

### Examples

```csharp
//Attach this to a GameObject
//This script tells when the A arrow key is pressed down and when it is released
using UnityEngine;

public class Example : MonoBehaviour
{
    void Update()
    {
        //Detect when the A arrow key is pressed down
        if (Input.GetKeyDown(KeyCode.A))
            Debug.Log("A key was pressed.");

        //Detect when the A arrow key has been released
        if (Input.GetKeyUp(KeyCode.A))
            Debug.Log("A key was released.");
    }
}
```