diff --git a/src/ctaiHistoryTextEdit.cpp b/src/ctaiHistoryTextEdit.cpp
index 9f95803..9b192d8 100644
--- a/src/ctaiHistoryTextEdit.cpp
+++ b/src/ctaiHistoryTextEdit.cpp
@@ -82,7 +82,7 @@ void ctaiHistoryTextEdit::init_msg_header_layout(msg_type msg_type_mode)
         header_info_layout->addWidget(m_msg_tokens);
         header_info_layout->addWidget(m_restart_to_send);
         header_info_layout->addWidget(m_msg_system_del);
-        // 3.SYSTEM消息头垂直第二排功能区    
+        // 3.SYSTEM消息头垂直第二排功能区
         header_opts_layout->addWidget(m_msg_tools);
         // 4.添加到消息头主布局
         header_layout->addLayout(header_info_layout);
@@ -146,7 +146,6 @@ void ctaiHistoryTextEdit::on_delete_slots()
     // 发送删除请求信号
     emit delete_requested(m_msg_sned_id);
 }
-
 void ctaiHistoryTextEdit::on_copy_slots()
 {
     // 获取文本并复制到剪贴板
@@ -154,7 +153,6 @@ void ctaiHistoryTextEdit::on_copy_slots()
     QClipboard *clipboard = QApplication::clipboard();
     clipboard->setText(text);
 }
-// 保存文件
 void ctaiHistoryTextEdit::on_save_file(int index)
 {
     QString fileName;
@@ -172,26 +170,26 @@ void ctaiHistoryTextEdit::on_save_file(int index)
         return;
     }
     QTextStream out(&file);
-    switch(index){
-        case 0:
-        temp_current_content=m_msg_history->toPlainText();
+    switch (index)
+    {
+    case 0:
+        temp_current_content = m_msg_history->toPlainText();
         break;
-        case 1:
-        temp_current_content=m_msg_history->toHtml();
+    case 1:
+        temp_current_content = m_msg_history->toHtml();
         break;
-        case 2:
-        temp_current_content=m_msg_history->toMarkdown();
+    case 2:
+        temp_current_content = m_msg_history->toMarkdown();
         break;
-        case 3:
+    case 3:
         break;
     }
-    if(!temp_current_content.isEmpty()){
+    if (!temp_current_content.isEmpty())
+    {
         out << m_current_content << "\n\n";
-    }    
+    }
     file.close();
 }
-
-// 实现折叠功能的槽函数
 void ctaiHistoryTextEdit::on_fold_slots()
 {
     m_is_folded = !m_is_folded;
@@ -216,8 +214,6 @@ void ctaiHistoryTextEdit::on_display_changed(QString mode)
         m_msg_history->setHtml(m_math_convert->replace_tags_svg(m_current_content, m_msg_tools->getFontSize().toInt()));
     }
 }
-
-// tokens按钮实现功能的槽函数
 void ctaiHistoryTextEdit::on_tokens_slots()
 {
     if (!m_msg_tokens_menu)
@@ -251,7 +247,6 @@ void ctaiHistoryTextEdit::on_tokens_slots()
     m_msg_tokens_menu->addAction(m_menu_total_tokens);
     m_msg_tokens_menu->exec(QCursor::pos());
 }
-
 void ctaiHistoryTextEdit::on_sync_text_height()
 {
     // 防抖动处理：如果上次更新在100ms内，则延迟处理
@@ -264,7 +259,6 @@ void ctaiHistoryTextEdit::on_sync_text_height()
     }
     // 直接使用documentLayout获取高度，避免多次计算
     int textHeight = m_msg_history->document()->documentLayout()->documentSize().height();
-
     if (textHeight > 0)
     {
         // 计算实际需要的高度 (包含边距和视口边框)
@@ -302,7 +296,7 @@ void ctaiHistoryTextEdit::add_user_message(const model_data &message)
     QString disp_data;
     disp_data = QSL(message.send_user_data);
     m_msg_sned_id = QSL(message.send_user_id);
-    m_msg_history->setHtml(m_math_convert->replace_tags_svg(disp_data, m_msg_tools->getFontSize().toInt()));
+    m_msg_history->setText(disp_data);
 }
 
 void ctaiHistoryTextEdit::add_system_message(const model_data &message)