我正在開發(fā)一個(gè)用于計(jì)算收入稅的應(yīng)用程序，代碼本身正常工作，但我想知道是否有辦法在輸入字段中鍵入時(shí)通過(guò)“，”更改“.”。示例：100，50 而不是 100.50請(qǐng)按照以下代碼操作：from tkinter import *# ---root = Tk()root.geometry('350x350')# ---l_receita1 = Label(root, text='Receita 1')l_receita1.place(x=10, y=10)e_receita1 = Entry(root)e_receita1.place(x=100, y=10)l_receita2 = Label(root, text='Receita 2')l_receita2.place(x=10, y=40)e_receita2 = Entry(root)e_receita2.place(x=100, y=40)# ---v_result1 = DoubleVar()l_resRec1 = Label(root, textvariable=v_result1)l_resRec1.place(x=10, y=100)v_result2 = DoubleVar()l_resRec2 = Label(root, textvariable=v_result2)l_resRec2.place(x=10, y=140)v_result3 = DoubleVar()l_resRec3 = Label(root, textvariable=v_result3)l_resRec3.place(x=10, y=220)# ---def calc(): v_result1.set(round(float(e_receita1.get()) * 8 / 100, 2)) v_result2.set(round(float(e_receita2.get()) * 12 / 100, 2)) v_result3.set(round(float(v_result1.get() + v_result2.get()), 2)) e_receita1.delete(0, END) e_receita2.delete(0, END)# ---bt = Button(root, text='Calcular', command=calc)bt.place(x=10, y=180)# ---root.mainloop()
2 回答
FFIVE
TA貢獻(xiàn)1797條經(jīng)驗(yàn) 獲得超6個(gè)贊
您可以綁定到 “.” 字符，并讓它插入一個(gè)“，”。用于防止出現(xiàn)默認(rèn)行為。return "break"
def replace_period(event):
event.widget.insert("insert", ",")
return "break"
e_receita1.bind("<.>", replace_period) # or "<period>"
達(dá)令說(shuō)
TA貢獻(xiàn)1821條經(jīng)驗(yàn) 獲得超6個(gè)贊
在回調(diào)函數(shù)中使用 和 將 “.” 替換為“，”：bind
from tkinter import *
# ---
root = Tk()
root.geometry('350x350')
# ---
def callback(e):
"""Function to change "." to "," while typing in an entry"""
val = e.widget.get()
# If statement avoids unnecessary delete/insert calls
if "." in val:
e.widget.delete(0, "end")
e.widget.insert(0, val.replace(".", ","))
l_receita1 = Label(root, text='Receita 1')
l_receita1.place(x=10, y=10)
e_receita1 = Entry(root)
e_receita1.bind('<KeyRelease>', callback) # Bind the key release
e_receita1.place(x=100, y=10)
l_receita2 = Label(root, text='Receita 2')
l_receita2.place(x=10, y=40)
e_receita2 = Entry(root)
e_receita2.bind('<KeyRelease>', callback) # Bind the key release
e_receita2.place(x=100, y=40)
# ---
v_result1 = DoubleVar()
l_resRec1 = Label(root, textvariable=v_result1)
l_resRec1.place(x=10, y=100)
v_result2 = DoubleVar()
l_resRec2 = Label(root, textvariable=v_result2)
l_resRec2.place(x=10, y=140)
v_result3 = DoubleVar()
l_resRec3 = Label(root, textvariable=v_result3)
l_resRec3.place(x=10, y=220)
# ---
def calc():
v_result1.set(round(float(e_receita1.get().replace(",", ".")) * 8 / 100, 2))
v_result2.set(round(float(e_receita2.get().replace(",", ".")) * 12 / 100, 2))
v_result3.set(round(float(v_result1.get() + v_result2.get()), 2))
e_receita1.delete(0, END)
e_receita2.delete(0, END)
# ---
bt = Button(root, text='Calcular', command=calc)
bt.place(x=10, y=180)
# ---
root.mainloop()
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