我有以下的谷歌Apps脚本: function popUp() {
const ui = SpreadsheetApp.getUi();
var message = "<HTML><BODY>"
+ "The meeting is at <b>10am</b>."
+ "</BODY></HTML>";
var popUP = ui.alert(message, ui.
我需要在完成另一个类的功能后,或至少在特定的时间后(如3秒)弹出显示加载的gif图像 以通知用户等待操作功能 loading image *******蟒蛇****** from kivy.app import App
from kivy.uix.popup import Popup
from kivy.lang import Builder
from kivy.uix.screenmana