用于制作简单 GUI 程序的 Python 库。换一种简单的方式写 GUI（图形用户界面）程序 ```python from guietta import _, Gui, Quit gui = Gui( [ "Enter numbers:", "__a__", "+", "__b__", ["Calculate"] ], [ "Result: -->", "result", _, _, _ ], [ _, _, _, _, Quit ] ) with gui.Calculate: gui.result = float(gui.a) + float(gui.b) gui.run() ```