新增上一页功能，BGM自动引入

src/plugins/index.js

@@ -2,6 +2,8 @@
 import gsap from 'gsap'
 import { Howl, Howler } from 'howler';
 
+
+
 // 初始化
 const btnEnable = ref(true)  //按钮可点击状态
 
@@ -10,6 +12,23 @@ const sound = new Howl({
     src: [new URL(`@/assets/media/click.mp3`, import.meta.url).href]
 });
 
+// 背景音乐
+export function bgm(autoPlay) {
+    let div = document.createElement('div')
+    let audio = document.createElement('audio')
+
+
+
+    div.append(audio)
+    document.body.append(div)
+
+
+
+    // const bgm = new Howl({ src: [new URL(`@/assets/media/bgm.mp3`, import.meta.url).href] });
+    // bgm.play()
+}
+
+
 //是否在微信环境
 export function isWX() {
     var ua = window.navigator.userAgent.toLowerCase();