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<p>这是我正在构建的翻译应用程序的延续。我希望将用户键输入到输入字段中的任何文本都应转换为小写,以便与python字典中的键匹配。拜托,我该怎么做?谢谢代码如下:</p>
<pre><code>from tkinter import *
import tkinter. messagebox
root=Tk()
root.geometry('250x250')
root.title("Meta' Translator")
root.configure(background="#35424a")
#Entry widget object
textin = StringVar()
#press ENTER key to activate translate button
def returnPressed(event):
clk()
def clk():
entered = ent.get()
output.delete(0.0,END)
try:
textin = exlist[entered]
except:
textin = 'Word not found'
output.insert(0.0,textin)
#heading
lab0=Label(root,text='Translate English Words to Meta\'',bg="#35424a",fg="silver",font=('none 11
bold'))
lab0.place(x=0,y=2)
#Entry field
ent=Entry(root,width=15,font=('Times 18'),textvar=textin,bg='white')
ent.place(x=30,y=30)
#focus on entry widget
ent.focus()
#Search button
but=Button(root,padx=1,pady=1,text='Translate',command=clk,bg='powder blue',font=('none 18
bold'))
but.place(x=60,y=90)
#press ENTER key to activate Translate button
root.bind('<Return>', returnPressed)
#output field
output=Text(root,width=15,height=1,font=('Times 18'),fg="black")
output.place(x=30,y=170)
#prevent sizing of window
root.resizable(False,False)
#Dictionary
exlist={
"hat":"ɨ̀də̀m",
"hoe":"əsɔ́",
"honey":"jú",
"chest":"ɨgɔ̂",
"eye":"ɨghə́",
"ear":"ǝ̀tǒŋ",
}
root.mainloop()
</code></pre>