[英]Using tkinter to create drop down menu?
我是Python的新手,我試圖創建一個GUI,當在下拉菜單中選擇一項時,該GUI顯示特征列表。 我希望文本顯示在下拉菜單下。 到目前為止,這是我所擁有的,但是它提供的只是一個空盒子:
import tkinter
import tkinter as tk
#creates box
window =tkinter.Tk()
frame= tkinter.Frame(window)
frame.pack()
window.geometry("%dx%d+%d+%d" % (330, 80, 200, 150))
window.title("Breeds and Characteristics")
#data
data=('Abyssinian','American-Bobtail','American-Curl')
Output1 ="Aloof,Intelligent,Diseased"
Output2= "Affectionate,Intelligent,Diseased"
Output3= "Affectionate,Dull,Healthy"
display = Label(window, text="")
#create a dropdown list
p = tkinter.Combobox(window, textvariable=var, values=data)
p.pack()
def chars():
for values in p:
if item == 'Abyssinian':
print (Output1)
elif item == 'American-Bobtail':
print (Output2)
elif item == 'American-Curl':
print (Output3)
#starts dropdown box at first cat
var = tkinter.StringVar()
var.set('Abyssinian')
#updates text
def boxtext():
display.configure(text=(chars))
display.pack()
#button to view characteristics
button = Button(window, text='View Characteristics', command=select)
button.pack(side='left', padx=20, pady=10)
window.mainloop()
下拉小部件稱為tkinter.OptionMenu
。 您需要制作一個可以更新Label並將其作為回調提供給OptionMenu的函數。 像這樣:
import tkinter
#creates box
window =tkinter.Tk()
window.geometry("%dx%d+%d+%d" % (330, 80, 200, 150))
window.title("Breeds and Characteristics")
#data
data={
'Abyssinian':"Aloof,Intelligent,Diseased",
'American-Bobtail':"Affectionate,Intelligent,Diseased",
'American-Curl':"Affectionate,Dull,Healthy",
}
#updates text
def boxtext(new_value):
display.config(text = data[new_value])
#create a dropdown list
var = tkinter.StringVar()
var.set('Abyssinian')
p = tkinter.OptionMenu(window, var, *data, command=boxtext)
p.pack()
display = tkinter.Label(window)
display.pack()
window.mainloop()
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