问题
I'm making a simple GUI, and my goal right now is for the user to select an option (kinematics or electricity) and then they would press the button to move on to a new screen for the one they selected. Currently, the button will do the same thing no matter which is selected, and I don't know how to change that. I'm using Python 3.6.1
from tkinter import *
import tkinter.font
bg_color1 = "#008B8B"
abc = Tk()
abc.title("Physics Problem Solver")
abc.rowconfigure(0, weight=1)
abc.columnconfigure(0, weight=1)
helvetica_bold_16 = tkinter.font.Font(
root = abc,
family="Helvetica",
weight="bold",
size=16)
helvetica_bold_12 = tkinter.font.Font(
root = abc,
family="Helvetica",
weight="bold",
size=12)
app = Frame(abc,
bd=6,
relief="groove",
bg=bg_color1)
app.rowconfigure(0, weight=1)
app.columnconfigure(0, weight=1)
app.grid(sticky=N+S+E+W)
msg1 = Message(app,
text = "Welcome to the Physics Problem Solver!",
font=helvetica_bold_16,
bg=bg_color1,
fg="white",
justify="center",
relief="flat")
msg1.grid(pady=15)
def callback1():
toplevel = Toplevel()
toplevel.title("Window 2")
toplevel.focus_set()
optionList = ("Kinematics",
"Electricity")
om1v= StringVar()
om1v.set(optionList[0])
om1 = OptionMenu(app,
om1v,
"Kinematics",
"Electricity")
om1.grid(pady=20)
b1= Button(app,
text="Go!",
width=5,
activebackground="#007070",
activeforeground="#00ACAC",
fg="black",
justify="center",
font=helvetica_bold_12,
relief="raised",
command=callback1)
b1.grid(pady=20)
abc.mainloop()
回答1:
There's nothing special you need to do. In your callback you can get the value of the option menu and then do whatever is appropriate.
def callback1():
if om1v.get() == "Kinematics":
do_kinematics
else:
do_electricity()
来源:https://stackoverflow.com/questions/44376791/using-python-with-tkinter-how-can-i-make-a-button-press-do-a-different-thing-de