diff --git a/src/main.js b/src/main.js
index a95b8d5..7a9215a 100644
--- a/src/main.js
+++ b/src/main.js
@@ -4,7 +4,7 @@
 // @author       qianjiachun
 // @icon         data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPHN2ZyB3aWR0aD0iMjJweCIgaGVpZ2h0PSIyMHB4IiB2aWV3Qm94PSIwIDAgMjIgMjAiIHZlcnNpb249IjEuMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxuczp4bGluaz0iaHR0cDovL3d3dy53My5vcmcvMTk5OS94bGluayI+CiAgICA8dGl0bGU+am95c291bmQvc2VsZWN0ZWQ8L3RpdGxlPgogICAgPGRlZnM+CiAgICAgICAgPGxpbmVhckdyYWRpZW50IHgxPSI1MCUiIHkxPSIwJSIgeDI9IjUwJSIgeTI9IjEwMCUiIGlkPSJsaW5lYXJHcmFkaWVudC0xIj4KICAgICAgICAgICAgPHN0b3Agc3RvcC1jb2xvcj0iI0YwQ0I5NSIgb2Zmc2V0PSIwJSI+PC9zdG9wPgogICAgICAgICAgICA8c3RvcCBzdG9wLWNvbG9yPSIjRTlCRTgwIiBvZmZzZXQ9IjEwMCUiPjwvc3RvcD4KICAgICAgICA8L2xpbmVhckdyYWRpZW50PgogICAgPC9kZWZzPgogICAgPGcgaWQ9ImpveXNvdW5kL3NlbGVjdGVkIiBzdHJva2U9Im5vbmUiIHN0cm9rZS13aWR0aD0iMSIgZmlsbD0ibm9uZSIgZmlsbC1ydWxlPSJldmVub2RkIj4KICAgICAgICA8ZyBpZD0i57yW57uEIiB0cmFuc2Zvcm09InRyYW5zbGF0ZSgyLjc4NTc1MCwgMC43MTQyMjUpIiBmaWxsPSJ1cmwoI2xpbmVhckdyYWRpZW50LTEpIiBmaWxsLXJ1bGU9Im5vbnplcm8iPgogICAgICAgICAgICA8cGF0aCBkPSJNMTYuNDI4NiwwIEwxNi40Mjg2LDkuNjQzIEMxNi40Mjg2LDE0LjEzNDU1MjcgMTIuODIzMzY2NywxNy43ODQyODggOC4zNDg5MzYxOCwxNy44NTYxNjk2IEw4LjE4NzE4MTUzLDE3Ljg1NzI1NjEgTDguMTg3MTgxNTMsMTcuODU3MjU2MSBMNy44NTcxLDE3Ljg1NzI1NjEgTDcuODU3MTM4OTYsMTcuODQ5NjQxIEMzLjQ5MjM4MDEzLDE3LjY2MjA3NDQgMCwxNC4wNTMxMzQxIDAsOS42NDMwNSBDMCw1LjExMzExNTA1IDMuNjg0NDAwMiwxLjQyODU1IDguMjE0MjUsMS40Mjg1NSBDOS43MDA3OTkxMywxLjQyODU1IDExLjA5NjI5ODUsMS44MjUzNTUwMiAxMi4zMDA0MTUxLDIuNTE4NjIzMzEgQzEyLjc0OTU2ODcsMS4wNjAxNjYwMSAxNC4xMDgyMjM2LDAgMTUuNzE0MzUsMCBMMTYuNDI4NiwwIFogTTguMjE0MjUsMi40Mjg1NSBDNC4yMzY2OTQ5NiwyLjQyODU1IDEsNS42NjUzODk3OCAxLDkuNjQzMDUgQzEsMTMuNTAwNzUwOCA0LjA0NDc3MzgsMTYuNjYxNzMzMyA3Ljg1NzA4ODk5LDE2Ljg0ODU2NjggTDcuODU3MDYyNTQsMTQuNTc1MDE3IEM2Ljc3Mjk4NjcxLDE0LjQ5NzMxMDMgNS43ODQ2MTcxOSwxNC4wNjg3NDc3IDUuMDA1MTgzMTEsMTMuNDAyNTU3OCBMNC45MjI0NzY5NywxMy4zMzAyNzYyIEw0LjgwNDkyNDY4LDEzLjIyMTc5NDEgQzMuODU5Mjk3NTksMTIuMzIwNjI4MyAzLjI2OTI1LDExLjA0OTU0OTYgMy4yNjkyNSw5LjY0MzAyNSBDMy4yNjkyNSw2LjkxNTg4MjYzIDUuNDg3MTA3NjMsNC42OTgwMjUgOC4yMTQyNSw0LjY5ODAyNSBDOS44MTQwMDc1Niw0LjY5ODAyNSAxMS4yMzg0NTI3LDUuNDYxMjEyMzMgMTIuMTQyNzY0NSw2LjY0MjcxMjE1IEwxMi4xNDI3NjQ1LDMuNTk0NjQ0OTEgQzExLjAxMTU4OTYsMi44NTczNjc2NSA5LjY2MTk5NDQ5LDIuNDI4NTUgOC4yMTQyNSwyLjQyODU1IFogTTguMjE0MjUsNS42OTgwMjUgQzYuMDM5MzkyMzcsNS42OTgwMjUgNC4yNjkyNSw3LjQ2ODE2NzM3IDQuMjY5MjUsOS42NDMwMjUgQzQuMjY5MjUsMTEuNjY5NTM3MyA1LjgwNjQ4MjY0LDEzLjM0NDc0OTggNy43NzU4ODgxNSwxMy41NjM1NjcyIEw3Ljg1NzEsMTMuNTcxNSBMOC4yMTQzNSwxMy41NzE1IEMxMC4zNDk2LDEzLjU3MTUgMTIuMDg2ODUsMTEuODY4IDEyLjE0MTYsOS43NDYgTDEyLjE0MjY0NjgsOS42NDMgTDEyLjE0MjY0NjgsOS4yODIzMzIzMyBDMTEuOTU5ODU4NSw3LjI3NTc1MDI2IDEwLjI2NzQ4MjMsNS42OTgwMjUgOC4yMTQyNSw1LjY5ODAyNSBaIE04LjIxNDI1LDcuNTAwMDI1IEM5LjM5NjE5Mjg0LDcuNTAwMDI1IDEwLjM1Nyw4LjQ2MDkzMzA5IDEwLjM1Nyw5LjY0MzAyNSBDMTAuMzU3LDEwLjgyNDkxNzQgOS4zOTYxNDIzNywxMS43ODU3NzUgOC4yMTQyNSwxMS43ODU3NzUgQzcuMDMyMTgyMTUsMTEuNzg1Nzc1IDYuMDcxNSwxMC44MjQ5OTE5IDYuMDcxNSw5LjY0MzAyNSBDNi4wNzE1LDguNDYwODU4NTUgNy4wMzIxMzE2OSw3LjUwMDAyNSA4LjIxNDI1LDcuNTAwMDI1IFogTTguMjE0MjUsOC41MDAwMjUgQzcuNTg0NDYzNDgsOC41MDAwMjUgNy4wNzE1LDkuMDEzMDk2MjcgNy4wNzE1LDkuNjQzMDI1IEM3LjA3MTUsMTAuMjcyNzMwNyA3LjU4NDQ5MDQyLDEwLjc4NTc3NSA4LjIxNDI1LDEwLjc4NTc3NSBDOC44NDM4NTc2MywxMC43ODU3NzUgOS4zNTcsMTAuMjcyNjMyNiA5LjM1Nyw5LjY0MzAyNSBDOS4zNTcsOS4wMTMxOTQzMyA4Ljg0Mzg4NDU3LDguNTAwMDI1IDguMjE0MjUsOC41MDAwMjUgWiIgaWQ9IuW9oueKtiI+PC9wYXRoPgogICAgICAgIDwvZz4KICAgIDwvZz4KPC9zdmc+
 // @namespace    https://github.com/qianjiachun/joysound-tampermonkey
-// @version      2022.02.11.03
+// @version      2022.02.12.01
 // @description  🎵✨通用网页视频音效增强/优化。Enhance/Optimize video sound in web.
 // @match        *://*/*
 // @include      *://*/*
@@ -19,12 +19,13 @@
 // ==/UserScript==
 
 let Joysound = null;
-let wasm = "";
+
 let joysoundList = [];
+let hasLoadedJs = false; // 是否已加载js
 const LOCAL_NAME = "Ex_isJoysound"; // 是否开启joysound
-const LOCAL_JS = "Ex_joysoundJs"; // 本地wasm代码
-const LOCAL_JS_VERSION = "Ex_joysoundJsVersion"; // 本地wasm版本号
-const JS_VERSION = "2022.02.11"; // wasm版本号，如有变动请修改这个值重新获取
+const LOCAL_JS = "Ex_joysoundJs"; // 本地js代码
+const LOCAL_JS_VERSION = "Ex_joysoundJsVersion"; // 本地js版本号
+const JS_VERSION = "2022.02.12"; // js版本号，如有变动请修改这个值重新获取
 
 class CustomJoysound {
     constructor(node) {
@@ -39,7 +40,25 @@ class CustomJoysound {
     }
 }
 
-function enableJoysound() {
+async function enableJoysound() {
+    // 开启joysound
+    // 判断有没有加载过js
+    if (!hasLoadedJs) {
+        // 先判断本地有没有js缓存，没有就下载，然后加载
+        let js = GM_getValue(LOCAL_JS);
+        let jsVersion = GM_getValue(LOCAL_JS_VERSION);
+        if (js && jsVersion == JS_VERSION) {
+            eval(js);
+        } else {
+            let js = await getJs();
+            GM_setValue(LOCAL_JS, js);
+            GM_setValue(LOCAL_JS_VERSION, JS_VERSION);
+            eval(js);
+        }
+        hasLoadedJs = true;
+    }
+
+    // js确保已经加载
     if (joysoundList.length > 0) {
         for (let i = 0; i < joysoundList.length; i++) {
             joysoundList[i].setEnabled(1);
@@ -77,44 +96,48 @@ GM_registerMenuCommand("开启", enableJoysound);
 GM_registerMenuCommand("关闭", disableJoysound);
 
 function init() {
-    let ret = localStorage.getItem(LOCAL_NAME);
-    if (ret == 1) {
-        let count = 0;
-        let timer = setInterval(() => {
-            let videoNodes = document.querySelectorAll("video");
-            if (videoNodes.length > 0) {
-                clearInterval(timer);
-                enableJoysound();
-            }
-            if (count >= 240) {
-                clearInterval(timer);
-            }
-            count++;
-        }, 500);
+    if (!isEnabledJoysound()) {
+        return;
     }
+    let count = 0;
+    let timer = setInterval(() => {
+        if (hasVideoNode()) {
+            clearInterval(timer);
+            enableJoysound();
+        }
+        if (count >= 240) {
+            clearInterval(timer);
+        }
+        count++;
+    }, 500);
 }
 
-(async function () {
-    let js = GM_getValue(LOCAL_JS);
-    let jsVersion = GM_getValue(LOCAL_JS_VERSION);
-    if (js && jsVersion == JS_VERSION) {
-        eval(js);
-        init();
-    } else {
+function getJs() {
+    return new Promise(resolve => {
         GM_xmlhttpRequest({
             method: "GET",
             url: "https://static.yximgs.com/udata/pkg/acfun-player/asyncPlayerPlugins.083319.js",
             responseType: "text",
             onload: function(response) {
-                wasm = response.response;
+                let ret = response.response;
                 const STR = "b.safari";
-                let index = wasm.indexOf(STR) + STR.length + 3;
-                let js = wasm.slice(0, index) + "Joysound=e;" + wasm.slice(index);
-                GM_setValue(LOCAL_JS, js);
-                GM_setValue(LOCAL_JS_VERSION, JS_VERSION);
-                eval(js);
-                init();
+                let index = ret.indexOf(STR) + STR.length + 3;
+                let js = ret.slice(0, index) + "Joysound=e;" + ret.slice(index);
+                resolve(js);
             }
         });
-    }
-})()
\ No newline at end of file
+    })
+}
+
+function hasVideoNode() {
+    let videoNodes = document.querySelectorAll("video");
+    return videoNodes.length > 0;
+}
+
+function isEnabledJoysound() {
+    return localStorage.getItem(LOCAL_NAME) == 1;
+}
+
+(async function () {
+    init();
+})();
\ No newline at end of file