我想将
Start_Button
与 2 个可能的功能绑定:
如果先单击
Choice_1_Button
,然后单击 Start_Button
,则 Start_Button
应调用 foo1
。但是,当用户单击 Choice_2_Button
时,相同的 Start Button
应调用 foo2
。
这是我目前拥有的代码:
from tkinter import *
root=Tk()
Choice_1_Button=Button(root, text='Choice 1', command=something) #what should it do?
Choice_2_Button=Button(root, text='Choice 2', command=something_else)
Start_Button=Button(root, text='Start', command=if_something) #and what about this?
有人知道
something
、something_else
和if-something
应该做什么吗?
以下代码跟踪他们按下的内容:
choice=None
def choice1():
global choice
choice='Choice 1'
def choice2():
global choice
choice='Choice 2'
def start():
global choice
if choice=='Choice 1':
foo1()
elif choice=='Choice 2':
foo2()
else:
#do something else since they didn't press either
将
choice1
作为 Choice_1_Button
的命令,将 choice2
作为 Choice_2_Button
的命令,将 start
作为 Start_Button
的命令。
如果您想使用单选按钮,它会更容易:
def start(choice):
if choice=='Choice 1':
foo1()
elif choice=='Choice 2':
foo2()
else:
#do something else since they didn't press either
var=StringVar(root)
var.set(None)
Radiobutton(root, text='Choice 1', value='Choice 1', variable=var).pack()
Radiobutton(root, text='Choice 2', value='Choice 2', variable=var).pack()
Button(self.frame, text='Start', command=lambda: start(var.get())).pack()