diff --git a/library/think/model/relation/BelongsToMany.php b/library/think/model/relation/BelongsToMany.php
index cf831f1b..93df01cf 100644
--- a/library/think/model/relation/BelongsToMany.php
+++ b/library/think/model/relation/BelongsToMany.php
@@ -128,14 +128,11 @@ class BelongsToMany extends Relation
      */
     public function eagerlyResult(&$result, $relation, $subRelation, $closure, $class)
     {
-        $localKey   = $this->localKey;
-        $foreignKey = $this->foreignKey;
-
         $pk = $result->getPk();
         if (isset($result->$pk)) {
             $pk = $result->$pk;
             // 查询管理数据
-            $data = $this->eagerlyManyToMany(['pivot.' . $localKey => $pk], $relation, $subRelation);
+            $data = $this->eagerlyManyToMany(['pivot.' . $this->localKey => $pk], $relation, $subRelation);
 
             // 关联数据封装
             if (!isset($data[$pk])) {
@@ -154,13 +151,11 @@ class BelongsToMany extends Relation
      */
     public function relationCount($result, $closure)
     {
-        $localKey   = $this->localKey;
-        $foreignKey = $this->foreignKey;
-        $pk         = $result->getPk();
-        $count      = 0;
+        $pk    = $result->getPk();
+        $count = 0;
         if (isset($result->$pk)) {
             $pk    = $result->$pk;
-            $count = $this->belongsToManyQuery($this->middle, $foreignKey, $localKey, ['pivot.' . $localKey => $pk])->count();
+            $count = $this->belongsToManyQuery($this->middle, $this->foreignKey, $this->localKey, ['pivot.' . $this->localKey => $pk])->count();
         }
         return $count;
     }
@@ -175,10 +170,8 @@ class BelongsToMany extends Relation
      */
     protected function eagerlyManyToMany($where, $relation, $subRelation = '')
     {
-        $foreignKey = $this->foreignKey;
-        $localKey   = $this->localKey;
         // 预载入关联查询 支持嵌套预载入
-        $list = $this->belongsToManyQuery($this->middle, $foreignKey, $localKey, $where)->with($subRelation)->select();
+        $list = $this->belongsToManyQuery($this->middle, $this->foreignKey, $this->localKey, $where)->with($subRelation)->select();
 
         // 组装模型数据
         $data = [];
@@ -193,8 +186,8 @@ class BelongsToMany extends Relation
                     }
                 }
             }
-            $set->pivot                = new Pivot($pivot, $this->middle);
-            $data[$pivot[$localKey]][] = $set;
+            $set->pivot                      = new Pivot($pivot, $this->middle);
+            $data[$pivot[$this->localKey]][] = $set;
         }
         return $data;
     }
diff --git a/library/think/model/relation/HasMany.php b/library/think/model/relation/HasMany.php
index 08e1e81e..f6455d6b 100644
--- a/library/think/model/relation/HasMany.php
+++ b/library/think/model/relation/HasMany.php
@@ -58,10 +58,8 @@ class HasMany extends Relation
      */
     public function eagerlyResultSet(&$resultSet, $relation, $subRelation, $closure, $class)
     {
-        $localKey   = $this->localKey;
-        $foreignKey = $this->foreignKey;
-
-        $range = [];
+        $localKey = $this->localKey;
+        $range    = [];
         foreach ($resultSet as $result) {
             // 获取关联外键列表
             if (isset($result->$localKey)) {
@@ -70,9 +68,9 @@ class HasMany extends Relation
         }
 
         if (!empty($range)) {
-            $this->where[$foreignKey] = ['in', $range];
-            $data                     = $this->eagerlyOneToMany($this, [
-                $foreignKey => [
+            $this->where[$this->foreignKey] = ['in', $range];
+            $data                           = $this->eagerlyOneToMany($this, [
+                $this->foreignKey => [
                     'in',
                     $range,
                 ],
@@ -100,11 +98,10 @@ class HasMany extends Relation
      */
     public function eagerlyResult(&$result, $relation, $subRelation, $closure, $class)
     {
-        $localKey   = $this->localKey;
-        $foreignKey = $this->foreignKey;
+        $localKey = $this->localKey;
 
         if (isset($result->$localKey)) {
-            $data = $this->eagerlyOneToMany($this, [$foreignKey => $result->$localKey], $relation, $subRelation, $closure);
+            $data = $this->eagerlyOneToMany($this, [$this->foreignKey => $result->$localKey], $relation, $subRelation, $closure);
             // 关联数据封装
             if (!isset($data[$result->$localKey])) {
                 $data[$result->$localKey] = [];
@@ -122,14 +119,13 @@ class HasMany extends Relation
      */
     public function relationCount($result, $closure)
     {
-        $localKey   = $this->localKey;
-        $foreignKey = $this->foreignKey;
-        $count      = 0;
+        $localKey = $this->localKey;
+        $count    = 0;
         if (isset($result->$localKey)) {
             if ($closure) {
                 call_user_func_array($closure, [ & $this->query]);
             }
-            $count = $this->query->where([$foreignKey => $result->$localKey])->count();
+            $count = $this->query->where([$this->foreignKey => $result->$localKey])->count();
         }
         return $count;
     }
diff --git a/library/think/model/relation/HasManyThrough.php b/library/think/model/relation/HasManyThrough.php
index 56b90f4c..79a822f3 100644
--- a/library/think/model/relation/HasManyThrough.php
+++ b/library/think/model/relation/HasManyThrough.php
@@ -67,8 +67,7 @@ class HasManyThrough extends Relation
      * @return void
      */
     public function eagerlyResultSet(&$resultSet, $relation, $subRelation, $closure, $class)
-    {
-    }
+    {}
 
     /**
      * 预载入关联查询 返回模型对象
@@ -81,8 +80,17 @@ class HasManyThrough extends Relation
      * @return void
      */
     public function eagerlyResult(&$result, $relation, $subRelation, $closure, $class)
-    {
-    }
+    {}
+
+    /**
+     * 关联统计
+     * @access public
+     * @param Model     $result 数据对象
+     * @param \Closure  $closure 闭包
+     * @return integer
+     */
+    public function relationCount($result, $closure)
+    {}
 
     /**
      * 执行基础查询（进执行一次）
diff --git a/library/think/model/relation/MorphMany.php b/library/think/model/relation/MorphMany.php
index b2e21013..44c344cd 100644
--- a/library/think/model/relation/MorphMany.php
+++ b/library/think/model/relation/MorphMany.php
@@ -106,12 +106,9 @@ class MorphMany extends Relation
      */
     public function eagerlyResult(&$result, $relation, $subRelation, $closure, $class)
     {
-        $morphType = $this->morphType;
-        $morphKey  = $this->morphKey;
-        $type      = $this->type;
-        $pk        = $result->getPk();
+        $pk = $result->getPk();
         if (isset($result->$pk)) {
-            $data = $this->eagerlyMorphToMany([$morphKey => $result->$pk, $morphType => $type], $relation, $subRelation, $closure);
+            $data = $this->eagerlyMorphToMany([$this->morphKey => $result->$pk, $this->morphType => $this->type], $relation, $subRelation, $closure);
             $result->setAttr($relation, $this->resultSetBuild($data[$result->$pk], $class));
         }
     }
@@ -125,16 +122,13 @@ class MorphMany extends Relation
      */
     public function relationCount($result, $closure)
     {
-        $morphType = $this->morphType;
-        $morphKey  = $this->morphKey;
-        $type      = $this->type;
-        $pk        = $result->getPk();
-        $count     = 0;
+        $pk    = $result->getPk();
+        $count = 0;
         if (isset($result->$pk)) {
             if ($closure) {
                 call_user_func_array($closure, [ & $this->query]);
             }
-            $count = $this->query->where([$morphKey => $result->$pk, $morphType => $type])->count();
+            $count = $this->query->where([$this->morphKey => $result->$pk, $this->morphType => $this->type])->count();
         }
         return $count;
     }
diff --git a/library/think/model/relation/MorphTo.php b/library/think/model/relation/MorphTo.php
index 6de1d4f4..fa691489 100644
--- a/library/think/model/relation/MorphTo.php
+++ b/library/think/model/relation/MorphTo.php
@@ -136,6 +136,16 @@ class MorphTo extends Relation
         $this->eagerlyMorphToOne($model, $relation, $result, $subRelation);
     }
 
+    /**
+     * 关联统计
+     * @access public
+     * @param Model     $result 数据对象
+     * @param \Closure  $closure 闭包
+     * @return integer
+     */
+    public function relationCount($result, $closure)
+    {}
+
     /**
      * 多态MorphTo 关联模型预查询
      * @access public
diff --git a/library/think/model/relation/OneToOne.php b/library/think/model/relation/OneToOne.php
index 0165314f..a5a5de9d 100644
--- a/library/think/model/relation/OneToOne.php
+++ b/library/think/model/relation/OneToOne.php
@@ -179,6 +179,16 @@ abstract class OneToOne extends Relation
         return $this;
     }
 
+    /**
+     * 关联统计
+     * @access public
+     * @param Model     $result 数据对象
+     * @param \Closure  $closure 闭包
+     * @return integer
+     */
+    public function relationCount($result, $closure)
+    {}
+
     /**
      * 一对一 关联模型预查询拼装
      * @access public