From dd24123921ef54be6994157c5bbc6e8762b7f3bf Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Tue, 28 Nov 2017 18:46:28 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9B=E5=BA=9F=E5=BC=83=E5=AD=97?=
 =?UTF-8?q?=E6=AE=B5=E5=88=A4=E6=96=AD?=
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---
 library/think/Model.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/think/Model.php b/library/think/Model.php
index 07592671..63e1622f 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -132,7 +132,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
         if ($this->disuse) {
             // 废弃字段
             foreach ((array) $this->disuse as $key) {
-                if (isset($this->data[$key])) {
+                if (array_key_exists($key, $this->data)) {
                     unset($this->data[$key]);
                 }
             }