Question

（Python初学者，如果问题太幼稚，请原谅我）在标签下面写着“Hello”，创建一个标签或栏或任何显示我的两只乌龟的更新位置（我更新的意思是乌龟同时移动其位置变化的两个坐标）导入Tkinter 进口龟

def run_turtles(*args):
    for t, d in args:
        t.circle(250, d)
    root.after_idle(run_turtles, *args)

root = Tkinter.Tk()
root.withdraw()

frame = Tkinter.Frame(bg='black')
Tkinter.Label(frame, text=u'Hello', bg='grey', fg='white').pack(fill='x')
canvas = Tkinter.Canvas(frame, width=750, height=750)
canvas.pack()
frame.pack(fill='both', expand=True)

turtle1 = turtle.RawTurtle(canvas)
turtle2 = turtle.RawTurtle(canvas)

turtle1.ht(); turtle1.pu()
turtle1.left(90); turtle1.fd(250); turtle1.lt(90)
turtle1.st(); turtle1.pd()

turtle2.ht(); turtle2.pu()
turtle2.fd(250); turtle2.lt(90)
turtle2.st(); turtle2.pd()

root.deiconify()

run_turtles((turtle1, 3), (turtle2, 4))

root.mainloop()

非常感谢你！

Answer 1

保存对标签的引用：turtleLabel = Tkinter.Label(frame, text=u'Hello', bg='grey', fg='white')

然后在您的run_turtles - 函数中，您可以通过设置文本来更新标签：

turtleLabel['text'] = "Here be coordinates"

您还可以使用configure方法更改文字：

turtleLabel.configure(text="Here be coordinates")

请注意，您无法在创建窗口小部件的同一语句中调用pack; pack会返回None，这会否定尝试保存对窗口小部件的引用。

如何更新Tkinter窗口中的信息？

1 个答案: