Input.anyKey

public static bool anyKey ;

Description

当前是否有任何键或鼠标按钮处于按下状态？（只读）

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Update() {
        if (Input.anyKey)
            Debug.Log("A key or mouse click has been detected");
        
    }
}