From 442c9c8c166d5b4c5a6ca9887cd39959b71b7a5d Mon Sep 17 00:00:00 2001
From: Yuan Jin <277739025@qq.com>
Date: Fri, 25 Aug 2023 09:03:54 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E6=89=8B=E5=86=99Prom?=
 =?UTF-8?q?ise=E4=B8=AD=5FchangeState=E6=96=B9=E6=B3=95=E7=9A=84bug?=
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---
 06. 手写Promise/MyPromise.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/06. 手写Promise/MyPromise.js b/06. 手写Promise/MyPromise.js
index 5c5ae5b..7e79905 100644
--- a/06. 手写Promise/MyPromise.js	
+++ b/06. 手写Promise/MyPromise.js	
@@ -161,6 +161,12 @@ class MyPromise {
       // 目前状态已经更改
       return;
     }
+    // 下面这个判断是为了处理value为Promise的情况
+    // 这一段代码课程中没有涉及，特此注释说明
+    if (isPromise(value)) {
+      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