Question

如何为命名标签小部件创建循环。我不知道如何将小部件名称设置为变量。

from tkinter import *

def dofunc():
    v1.set("one")
    v2.set("two")
    v3.set("three")
    widget4.config(text="four")

v1=StringVar()
widget1=Label(root,width=10,textvariable=v1)
widget1.pack()

v2=StringVar()
widget2=Label(root,width=10,textvariable=v2)
widget2.pack()

v3=StringVar()
widget3=Label(root,width=10,textvariable=v3)
widget3.pack()

widget4=Label(root,width=10)
widget4.pack()

root.geometry("+50+50")
root.after(500, dofunc)
root.mainloop()

Answer 1

我相信你要找的答案是容器吗？

bag_o_widgets = {}  # A dict because you said "name", it could equally be an list with numbers for names.
def dofunc():
    for i in range(1,4):  # Generates 1,2 and 3 as inputs to the str() function for "naming".
        v = StringVar()
        bag_o_widgets[str(i)] = Label(root, width=10, textvariable=v)
        bag_o_widgets[str(i)].pack()
    bag_o_widgets["4"] = Label(root,width=10)
    bag_o_widgets["4"].pack()
    bag_o_widgets["4"].config(text="four")
    return bag_o_widgets

这是在循环中命名变量的规范方法。

令人讨厌的文字黑客将改为使用多态代码。

Answer 2

来自约翰的代码

我用这种方式......

from tkinter import *

def dofunc():
    bag_o_widgets[str(2)].config(text='two')
    bag_o_widgets[str(5)].config(text='five')
    bag_o_widgets[str(10)].config(text='ten')
    bag_o_widgets[str(17)].config(text='seventeen')

root=Tk()  

bag_o_widgets = {} 
for i in range(1,21):
    bag_o_widgets[str(i)] = Label(root, width=15)
    bag_o_widgets[str(i)].pack()

root.after(100,dofunc)
root.mainloop()

循环用于设置tkinter小部件名称

2 个答案: