From c67eb5adc87596772cb5a1e6632c01e49d24f6e8 Mon Sep 17 00:00:00 2001
From: thinkphp <thinkphp@qq.com>
Date: Mon, 10 Oct 2016 17:25:37 +0800
Subject: [PATCH] =?UTF-8?q?=E6=94=B9=E8=BF=9BQuery=E7=B1=BB=E7=9A=84value?=
 =?UTF-8?q?=E6=96=B9=E6=B3=95=E7=BC=93=E5=AD=98=E5=88=A4=E6=96=AD?=
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---
 library/think/db/Query.php | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/library/think/db/Query.php b/library/think/db/Query.php
index 79ad05ba..5c3e0f0e 100644
--- a/library/think/db/Query.php
+++ b/library/think/db/Query.php
@@ -377,7 +377,7 @@ class Query
      */
     public function value($field, $default = null)
     {
-        $result = null;
+        $result = false;
         if (!empty($this->options['cache'])) {
             // 判断查询缓存
             $cache = $this->options['cache'];
@@ -387,7 +387,7 @@ class Query
             $key    = is_string($cache['key']) ? $cache['key'] : md5($field . serialize($this->options));
             $result = Cache::get($key);
         }
-        if (!$result) {
+        if (false === $result) {
             if (isset($this->options['field'])) {
                 unset($this->options['field']);
             }
@@ -409,7 +409,7 @@ class Query
             // 清空查询条件
             $this->options = [];
         }
-        return !is_null($result) ? $result : $default;
+        return false !== $result ? $result : $default;
     }
 
     /**
@@ -431,7 +431,7 @@ class Query
             $guid   = is_string($cache['key']) ? $cache['key'] : md5($field . serialize($this->options));
             $result = Cache::get($guid);
         }
-        if (!$result) {
+        if (false === $result) {
             if (isset($this->options['field'])) {
                 unset($this->options['field']);
             }