diff --git "a/8. \345\274\202\346\255\245\345\244\204\347\220\206/8-6. [\346\211\251\345\261\225]\346\211\213\345\206\231Promise/MyPromise.js" "b/8. \345\274\202\346\255\245\345\244\204\347\220\206/8-6. [\346\211\251\345\261\225]\346\211\213\345\206\231Promise/MyPromise.js"
index f60ead1dabd6937517373b2327ea64076b4dde2d..f73247337b32942f640e85d0f4cfe93ffba3a83d 100644
--- "a/8. \345\274\202\346\255\245\345\244\204\347\220\206/8-6. [\346\211\251\345\261\225]\346\211\213\345\206\231Promise/MyPromise.js"	
+++ "b/8. \345\274\202\346\255\245\345\244\204\347\220\206/8-6. [\346\211\251\345\261\225]\346\211\213\345\206\231Promise/MyPromise.js"	
@@ -1,7 +1,7 @@
 // 记录Promise的三种状态
-const PENDING = 'pending';
-const FULFILLED = 'fulfilled';
-const REJECTED = 'rejected';
+const PENDING = "pending";
+const FULFILLED = "fulfilled";
+const REJECTED = "rejected";
 
 /**
  * 运行一个微队列任务
@@ -15,12 +15,12 @@ function runMicroTask(callback) {
   if (globalThis.process && globalThis.process.nextTick) {
     process.nextTick(callback);
   } else if (globalThis.MutationObserver) {
-    const p = document.createElement('p');
+    const p = document.createElement("p");
     const observer = new MutationObserver(callback);
     observer.observe(p, {
       childList: true, // 观察该元素内部的变化
     });
-    p.innerHTML = '1';
+    p.innerHTML = "1";
   } else {
     setTimeout(callback, 0);
   }
@@ -32,7 +32,7 @@ function runMicroTask(callback) {
  * @returns
  */
 function isPromise(obj) {
-  return !!(obj && typeof obj === 'object' && typeof obj.then === 'function');
+  return !!(obj && typeof obj === "object" && typeof obj.then === "function");
 }
 
 class MyPromise {
@@ -94,7 +94,7 @@ class MyPromise {
         return;
       }
 
-      if (typeof executor !== 'function') {
+      if (typeof executor !== "function") {
         // 传递后续处理并非一个函数
         this._state === FULFILLED ? resolve(this._value) : reject(this._value);
         return;
@@ -161,6 +161,12 @@ class MyPromise {
       // 目前状态已经更改
       return;
     }
+    if (isPromise(value)) {
+      runMicroTask(() => {
+        value.then(this._resolve.bind(this), this._reject.bind(this));
+      });
+      return;
+    }
     this._state = newState;
     this._value = value;
     this._runHandlers(); // 状态变化，执行队列
@@ -285,4 +291,3 @@ class MyPromise {
     });
   }
 }
-