modify

public/publicAccount/js/index.js

@@ -103,7 +103,7 @@ $(function () {
                             <div class="conversation-answer">
                                 <div class="answer-data">${answer}</div>
                             </div>`;
-                        $('.conversation-loading').insertBefore(div);
+                        $('.conversation-wrap')[0].insertBefore(div, $('.conversation-loading')[0]);
                         $(this).val("");
                         $('.conversation-loading').hide();
                         scrollBottom();