diff --git a/blivedm b/blivedm
index 1613238..fb9b687 160000
--- a/blivedm
+++ b/blivedm
@@ -1 +1 @@
-Subproject commit 161323842071f1bc9edaef044f78644e39464c3a
+Subproject commit fb9b687e586ad47776f302bf363ccbcc23a571b1
diff --git a/frontend/src/views/Room.vue b/frontend/src/views/Room.vue
index 0f8a250..9e7fad2 100644
--- a/frontend/src/views/Room.vue
+++ b/frontend/src/views/Room.vue
@@ -83,12 +83,13 @@ export default {
       let {cmd, data} = JSON.parse(event.data)
       let message = null
       let time = data.timestamp ? new Date(data.timestamp * 1000) : new Date()
-      switch(cmd) {
+      switch (cmd) {
       case COMMAND_ADD_TEXT:
         if (!this.config.showDanmaku || !this.filterTextMessage(data) || this.mergeSimilar(data.content)) {
           break
         }
         message = {
+          id: `text_${this.nextId++}`,
           type: constants.MESSAGE_TYPE_TEXT,
           avatarUrl: data.avatarUrl,
           time: time,
@@ -108,6 +109,7 @@ export default {
           break
         }
         message = {
+          id: `gift_${this.nextId++}`,
           type: constants.MESSAGE_TYPE_SUPER_CHAT,
           avatarUrl: data.avatarUrl,
           authorName: data.authorName,
@@ -122,6 +124,7 @@ export default {
           break
         }
         message = {
+          id: `member_${this.nextId++}`,
           type: constants.MESSAGE_TYPE_MEMBER,
           avatarUrl: data.avatarUrl,
           time: time,
@@ -138,6 +141,7 @@ export default {
           break
         }
         message = {
+          id: `sc_${data.id}`,
           type: constants.MESSAGE_TYPE_SUPER_CHAT,
           avatarUrl: data.avatarUrl,
           authorName: data.authorName,
@@ -146,10 +150,21 @@ export default {
           content: data.content
         }
         break
-      case COMMAND_DEL_SUPER_CHAT:
-        // TODO 删除SC
+      case COMMAND_DEL_SUPER_CHAT: {
+        let arrays = [this.messages, this.messagesBuffer, this.paidMessages]
+        for (let id of data.ids) {
+          id = `sc_${id}`
+          for (let arr of arrays) {
+            for (let i = 0; i < arr.length; i++) {
+              if (arr[i].id === id) {
+                arr.splice(i, 1)
+              }
+            }
+          }
+        }
         break
       }
+      }
       if (message) {
         this.addMessageBuffer(message)
       }
@@ -208,7 +223,7 @@ export default {
       return false
     },
     addMessageBuffer(message) {
-      if (this.config.maxSpeed > 0 && message.type === 0) {
+      if (this.config.maxSpeed > 0 && message.type === constants.MESSAGE_TYPE_TEXT) {
         message.addTime = new Date()
         this.messagesBuffer.push(message)
       } else {
@@ -217,7 +232,6 @@ export default {
       }
     },
     addMessageShow(message) {
-      message.id = this.nextId++
       message.addTime = new Date()
       this.messages.push(message)
       if (message.type !== constants.MESSAGE_TYPE_TEXT) {
diff --git a/views/chat.py b/views/chat.py
index e258301..7c14b7d 100644
--- a/views/chat.py
+++ b/views/chat.py
@@ -208,8 +208,8 @@ class RoomManager:
     @staticmethod
     def __send_test_message(room):
         base_data = {
-            'avatarUrl':  'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@48w_48h',
-            'timestamp':  time.time(),
+            'avatarUrl': 'https://i0.hdslb.com/bfs/face/29b6be8aa611e70a3d3ac219cdaf5e72b604f2de.jpg@48w_48h',
+            'timestamp': time.time(),
             'authorName': 'xfgryujk',
         }
         text_data = {
@@ -222,25 +222,31 @@ class RoomManager:
             'isNewbie': False,
             'isMobileVerified': True
         }
-        vip_data = base_data
+        member_data = base_data
         gift_data = {
             **base_data,
-            'giftName': '礼花',
+            'giftName': '摩天大楼',
             'giftNum': 1,
-            'totalCoin': 28000
+            'totalCoin': 450000
+        }
+        sc_data = {
+            **base_data,
+            'price': 30,
+            'content': 'The quick brown fox jumps over the lazy dog',
+            'id': 1
         }
         room.send_message(Command.ADD_TEXT, text_data)
         text_data['authorName'] = '主播'
         text_data['authorType'] = 3
         text_data['content'] = "I can eat glass, it doesn't hurt me."
         room.send_message(Command.ADD_TEXT, text_data)
-        room.send_message(Command.ADD_MEMBER, vip_data)
-        room.send_message(Command.ADD_GIFT, gift_data)
-        gift_data['giftName'] = '节奏风暴'
-        gift_data['totalCoin'] = 100000
-        room.send_message(Command.ADD_GIFT, gift_data)
-        gift_data['giftName'] = '摩天大楼'
-        gift_data['totalCoin'] = 450000
+        room.send_message(Command.ADD_MEMBER, member_data)
+        room.send_message(Command.ADD_SUPER_CHAT, sc_data)
+        sc_data['price'] = 100
+        sc_data['content'] = '敏捷的棕色狐狸跳过了懒狗'
+        sc_data['id'] = 2
+        room.send_message(Command.ADD_SUPER_CHAT, sc_data)
+        # room.send_message(Command.DEL_SUPER_CHAT, {'ids': [1, 2]})
         room.send_message(Command.ADD_GIFT, gift_data)
         gift_data['giftName'] = '小电视飞船'
         gift_data['totalCoin'] = 1245000