Python OptionMenu在与for语句一起使用时仅显示一个选项

Question

我正在尝试在Tkinter（下拉菜单）中实现OptionMenu

目前它只显示文本文件中的第一行，它应该根据文本文件中的行数在OptionMenu中显示一个新选项。相反，它只是在一个完整的选项中显示它们

Canvas(height = 600, width = 800).place(x=0,y=0)
with open('football.txt') as txt:
    footballFixtures = [cut.strip().split(':') for cut in txt.readlines()]
for typeoffixture,descriptionoffixture,dateoffixture,resultoffixture in footballFixtures:
    desc = [descriptionoffixture]
    first = StringVar()
    first.set("Select a Fixture") 
    OptionMenu(root,first, *desc).place(x=90, y=150)

文本文件的复制

Type of Fixture - Football:Description of Fixture - Test vs Test:Date of Fixture - 10-12-1998:Result of Fixture - To-be-Announced
Type of Fixture - Football:Description of Fixture - Test vs Testt:Date of Fixture - 10-12-2013:Result of Fixture - To-be-Announced

Answer 1

如果我理解得很好，你的代码应该是这样的：

desc = []
with open('football.txt') as txt:
    footballFixtures = [cut.strip().split(':') for cut in txt.readlines()]
    print footballFixtures
for typeoffixture,descriptionoffixture,dateoffixture,resultoffixture in footballFixtures:
    desc.append(descriptionoffixture)
first = StringVar()
first.set("Select a Fixture")
OptionMenu(root,first, *desc).place(x=90, y=150)

Answer 2

您正在为文件中的每一行创建一个OptionMenu，并且您将它们堆叠在一起。将OptionMenu的创建移到循环之外。