diff --git a/index.html b/index.html
index cf049e6..eb8073a 100644
--- a/index.html
+++ b/index.html
@@ -11,6 +11,7 @@
 <body>
     <div id="kof">
     </div>
+
     <script type="module">
         import {KOF} from '/static/js/base.js';
         let kof = new KOF('kof');
diff --git a/static/audios/bgm.m4a b/static/audios/bgm.m4a
new file mode 100644
index 0000000..15972fa
Binary files /dev/null and b/static/audios/bgm.m4a differ
diff --git a/static/css/base.css b/static/css/base.css
index 7d1da06..2953fcc 100644
--- a/static/css/base.css
+++ b/static/css/base.css
@@ -82,4 +82,3 @@
     font-weight: bold;
     color: blue;
 }
-
diff --git a/static/js/game_map/base.js b/static/js/game_map/base.js
index 6cc3f2e..94f89b5 100644
--- a/static/js/game_map/base.js
+++ b/static/js/game_map/base.js
@@ -23,31 +23,39 @@ class GameMap extends AcGameObject {
         </div>
         </div>`));
 
+        this.root.$kof.append($(`
+        <audio id="player" autoplay>
+            <source src="./static/audios/bgm.m4a" type="audio/mpeg">
+         </audio>`));
+
         this.time_left = 60000; // 剩余时间
         this.$timer = this.root.$kof.find('.kof-head-timer');
-
+        this.$bgm = this.root.$kof.find('#player')[0];
+        this.$bgm.currentTime = 0;
+        this.$bgm.play();
     }
 
     start() {
-
     }
 
     update_timer() { // 更新时间
-        let [a,b] = this.root.players;
+        let [a, b] = this.root.players;
         if (a.status === 6 || b.status === 6) {
+            this.$bgm.pause();
             return;
         }
-    
+
         this.time_left -= this.time_delta;
         if (this.time_left < 0) {
             this.time_left = 0;
+            this.$bgm.pause();
             if (a.status !== 6 && b.status !== 6) {
                 a.status = b.status = 6;
-                a.current_frame_cnt = b.current_frame_cnt =  0;
+                a.current_frame_cnt = b.current_frame_cnt = 0;
                 a.vx = b.vx = 0;
-            }  
+            }
         }
-        this.$timer.text(parseInt(this.time_left / 1000)); 
+        this.$timer.text(parseInt(this.time_left / 1000));
     }
 
     update() {
@@ -56,7 +64,7 @@ class GameMap extends AcGameObject {
     }
 
     render() {
-        this.ctx.clearRect(0,0,this.ctx.canvas.width,this.ctx.canvas.height);
+        this.ctx.clearRect(0, 0, this.ctx.canvas.width, this.ctx.canvas.height);
         // console.log(this.ctx.canvas.width,this.ctx.canvas.height); // 打印canvas的宽高
         // console.log(this.$canvas.width());
         // this.ctx.fillStyle = "#21252b"; // 画布的颜色
