Time.timeSinceLevelLoad

说明

自上次非叠加场景加载完成以来经过的秒数（只读）。

其工作方式与 Time.time 相同，但存在负偏移。

//Attach this script to a GameObject
//Create a Button (Create>UI>Button) and a Text GameObject (Create>UI>Text)
//Click on the GameObject and attach the Button and Text in the fields in the Inspector

//This script outputs the time since the last level load. It also allows you to load a new Scene by pressing the Button. When this new Scene loads, the time resets and updates.

using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class TimeSinceLevelLoad : MonoBehaviour
{
    public Button m_MyButton;
    public Text m_MyText;

    void Awake()
    {
        // Don't destroy the GameObject when loading a new Scene
        DontDestroyOnLoad(gameObject);
        // Make sure the Canvas isn't deleted so the UI stays on the Scene load
        DontDestroyOnLoad(GameObject.Find("Canvas"));

        if (m_MyButton != null)
            // Add a listener to call the LoadSceneButton function when the Button is clicked
            m_MyButton.onClick.AddListener(LoadSceneButton);
    }

    void Update()
    {
        // Output the time since the Scene loaded to the screen using this label
        m_MyText.text = "Time Since Loaded : " + Time.timeSinceLevelLoad;
    }

    void LoadSceneButton()
    {
        // Press this Button to load another Scene
        // Load the Scene named "Scene2"
        SceneManager.LoadScene("Scene2");
    }
}