1. First create the first scene and create a Button in Canvas
The shortcut key is Ctrl+N, and then press Ctrl+S to save the scene to a file
As shown in the picture -------------------------------------------- ------------------------------------------------ The start is button
2. Create a second scene as the scene to switch after clicking the button
Click File-Build Settings in the upper left corner
Drag the second scene into the Scenes In Bulid box
This step must be done! ! ! Otherwise the executed code cannot recognize the scene
3. Create an empty object GameObject in the first scene Canvas, and add code 
Click on the empty object GameObject to create a Move To Scene script, Edit Script to edit the script
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;/*切换场景必须添加的前缀*/
public class MoveToScene : MonoBehaviour
{
void Start()
{
}
void Update()
{
}
public void ChangeScene()/*定义一个切换场景*/
{
SceneManager.LoadScene("你要切换的场景名");/*双引号里面填入你创建的场景命名*/
}
}
*Note: Be sure to add using UnityEngine.SceneManagement; prefix --------------------------
4. Move the empty object GameObject to On Click() in the Button component of the button
In the UI that has been created in the first scene: In the Inspector of Button, find that there is a button at the bottom of the Button component
On Click() is empty by default, so we first click the "+" in the lower right corner to create
Move the GameObject into None(Object)
Click No Function, select the script we have written Move To Scene
Finally select the ChangeScene() function we created, and you're done! ~~~
Take a look at the effect:
