点击返回键返回上个场景源码

using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class SceneManagers : MonoBehaviour
{
    public static SceneManagers Singleton;

    private static List<string> LastScene = new List<string>();


    void Awake()
    {
        Singleton = this;
    }
    public void LoadScene(string Str)
    {
        LastScene.Add(SceneManager.GetActiveScene().name);//保存当前场景名字

        SceneManager.LoadScene(Str);//加载新场景
    }
    public void LoadLastScene()
    {
        if (LastScene.Count > 0)
        {
            SceneManager.LoadScene(LastScene[LastScene.Count - 1]);
            LastScene.RemoveAt(LastScene.Count - 1);
        }
        else
        {
            Debug.Log("已是最初场景，无法后退");
        }
    }

}