增效图片消息

src/Wechat/Work/Message/MessageInterface.php

@@ -67,6 +67,13 @@ abstract class MessageInterface
                     $this->type => $this->attr,
                 ]);
                 break;
+            case self::TYPE_IMAGE:
+                $params = array_merge($params, [
+                    $this->type => [
+                        'media_id' => $this->attr['media_id'],
+                    ],
+                ]);
+                break;
             default:
                 throw new \Exception('message type ' . $this->type . ' is not allow');
         }

src/Wechat/Work/Message/TextImageMessage.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Wechat\Work\Message;
+
+use Wechat\Work\Message\MessageInterface;
+
+class TextImageMessage extends MessageInterface
+{
+
+    public function __construct($content)
+    {
+        $this->type = self::TYPE_IMAGE;
+        $this->attr['media_id'] = $content;
+    }
+
+}