diff --git a/examples/loadObjDemo.php b/examples/loadObjDemo.php
index d660a3c..7332d04 100644
--- a/examples/loadObjDemo.php
+++ b/examples/loadObjDemo.php
@@ -8,7 +8,7 @@ use Blobt\Luxcore\core\LoardObj;
 include dirname(dirname(__FILE__)) . "/vendor/autoload.php";
 ini_set('memory_limit','4096M');
 
-$transform = new LoardObj('/home/yuanjiajia/Desktop/blender/test/椅子.obj');
+$transform = new LoardObj('/home/yuanjiajia/Desktop/blender/test/沙发.obj');
 $transform->toGltf();
 $transform = $transform->toPly();
 var_dump( $transform );
diff --git a/src/core/LoardObj.php b/src/core/LoardObj.php
index 31a662c..5e18216 100644
--- a/src/core/LoardObj.php
+++ b/src/core/LoardObj.php
@@ -195,7 +195,7 @@ class LoardObj
     private function createPly()
     {
         
-        foreach( $this->objData['meshs'] as $meshs_key => $meshs_value )
+        foreach( $this->objData['meshs'] as $meshsKey => $meshsValue )
         {   
             $ply['vertex'] = [];
             $ply['face'] = [];
@@ -203,29 +203,29 @@ class LoardObj
             $indexesList = [];
             $vConst = 0;
 
-            foreach( $meshs_value as $face_value )                                      // 生成顶点和面数据
+            foreach( $meshsValue as $faceValue )                                      // 生成顶点和面数据
             {   
-                $face_value = implode('/', $face_value);
-                $face_value = explode('/', $face_value);
+                $faceValue = implode('/', $faceValue);
+                $faceValue = explode('/', $faceValue);
                 $lineFace = [];
                 $v = [];
                 $vt = [];
                 $vn = [];
-                foreach( $face_value as $v_key =>  $v_value )
+                foreach( $faceValue as $vKey =>  $vValue )
                 {   
-                    switch( ($v_key+1) % 3 )
+                    switch( ($vKey+1) % 3 )
                     {
                         case 1:
-                            $v = $this->objData['v'][$v_value-1];
+                            $v = $this->objData['v'][$vValue-1];
                             break;
 
                         case 2:
-                            if( $v_value == null ) $vt = ['0.0000','0.0000'];
-                            else $vt = array_slice($this->objData['vt'][$v_value-1],0,2);
+                            if( $vValue == null ) $vt = ['0.0000','0.0000'];
+                            else $vt = array_slice($this->objData['vt'][$vValue-1],0,2);
                             break;
 
                         case 0;
-                            $vn = $this->objData['vn'][$v_value-1];
+                            $vn = $this->objData['vn'][$vValue-1];
                             $vnt = implode(' ',$v).' '.implode(' ',$vn).' '.implode(' ',$vt);
                             $hashVar = hash('md5', $vnt);
                             if( !array_key_exists($hashVar, $indexesList) )
@@ -264,7 +264,7 @@ class LoardObj
             $ply['header'][] = "property list uchar uint vertex_indices";
             $ply['header'][] = "end_header";
 
-            $this->plyData[$meshs_key] = $ply;                                          // 在 数组plyData 中添加一个 $key 所指名称的ply模型
+            $this->plyData[$meshsKey] = $ply;                                          // 在 数组plyData 中添加一个 $key 所指名称的ply模型
         }
 
     }
@@ -296,7 +296,7 @@ class LoardObj
         $minY = 100000000;
         $minZ = 100000000;
         
-        foreach( $this->objData['meshs'] as $meshs_key => $meshs_value )
+        foreach( $this->objData['meshs'] as $meshsKey => $meshsValue )
         {   
             $gltf['v'] = null;
             $gltf['vt'] = null;
@@ -304,24 +304,24 @@ class LoardObj
             $gltf['face'] = null;
             $indexesList = [];
             $vConst = 0;
-            foreach( $meshs_value as $face_value )                                      
+            foreach( $meshsValue as $faceValue )                                      
             {   
                 // 生成顶点和面数据
-                $face_value = implode('/', $face_value);
-                $face_value = explode('/', $face_value);
+                $faceValue = implode('/', $faceValue);
+                $faceValue = explode('/', $faceValue);
                 $lineFace = [];
                 $v = null;
                 $vt = null;
                 $vn = null;
-                foreach( $face_value as $v_key =>  $v_value )
+                foreach( $faceValue as $vKey =>  $vValue )
                 {   
-                    switch( ($v_key+1) % 3 )
+                    switch( ($vKey+1) % 3 )
                     {
                         case 1:
-                            foreach($this->objData['v'][$v_value-1] as $xyz_key => $xyz_value)
+                            foreach($this->objData['v'][$vValue-1] as $xyzKey => $xyzValue)
                             {   
-                                $xyz_value = (float)$xyz_value;
-                                switch( ($xyz_key+1) % 3 )
+                                $xyz_value = (float)$xyzValue;
+                                switch( ($xyzKey+1) % 3 )
                                 {
                                     case 1:
                                         $maxX = $xyz_value > $maxX ? $xyz_value : $maxX;
@@ -339,16 +339,16 @@ class LoardObj
                                         ;
                                 }
                             }
-                            $v = $this->objData['v'][$v_value-1];
+                            $v = $this->objData['v'][$vValue-1];
                             break;
 
                         case 2:
-                            if( $v_value == null ) $vt = ['0.0000','0.0000'];
-                            else $vt = array_slice($this->objData['vt'][$v_value-1],0,2);
+                            if( $vValue == null ) $vt = ['0.0000','0.0000'];
+                            else $vt = array_slice($this->objData['vt'][$vValue-1],0,2);
                             break;
 
                         case 0;
-                            $vn = $this->objData['vn'][$v_value-1];
+                            $vn = $this->objData['vn'][$vValue-1];
                             $hashVar = implode(' ',$v).' '.implode(' ',$vn).' '.implode(' ',$vt);
                             $hashVar = hash('md5', $hashVar);
                             if( !array_key_exists($hashVar, $indexesList) )
@@ -497,7 +497,7 @@ class LoardObj
 
             $mesh = null;
             $mesh = "\t\t{\n";
-                $mesh .= "\t\t\t\"name\" : \"".$meshs_key."\",\n";
+                $mesh .= "\t\t\t\"name\" : \"".$meshsKey."\",\n";
                 $mesh .= "\t\t\t\"primitives\" :\n";
                 $mesh .= "\t\t\t[\n";
                     $mesh .= "\t\t\t\t{\n";
@@ -519,7 +519,7 @@ class LoardObj
             $node = null;
             $node = "\t\t{\n";
             $node .= "\t\t\t\"mesh\" : ".$meshCount.",\n";
-            $node .= "\t\t\t\"name\" : \"".$meshs_key."\"\n";
+            $node .= "\t\t\t\"name\" : \"".$meshsKey."\"\n";
             $node .= "\t\t}";
             $this->gltfData['nodes'][$meshCount] = $node;
             $bufferCount++;
@@ -580,12 +580,12 @@ class LoardObj
                 fwrite($handle,$data);
             }
             
-            foreach( $value['vertex'] as $v_value )                 // 2、写入顶点数据
+            foreach( $value['vertex'] as $vValue )                 // 2、写入顶点数据
             {
                 if( $format == self::TYPE_BINARY )                  
                 {   
                     $data = null;
-                    foreach( explode(' ', $v_value) as $v )                                       
+                    foreach( explode(' ', $vValue) as $v )                                       
                     {   
                         $data .= pack('f',$v);
                     }
@@ -593,7 +593,7 @@ class LoardObj
                 }
                 else
                 {
-                    $data = $v_value."\n";                          
+                    $data = $vValue."\n";                          
                     fwrite($handle,$data);                          // 文本格试写入 
                 }
             }