Tkinter 攝氏溫度轉華視溫度

# -*- coding: UTF-8 -*-

from tkinter import *

from tkinter import ttk

def calculate(*args):

    try:

        value = float(Cels.get())

        Fahr.set( value * (9/5) +32)

    except ValueError:

        pass

    

root = Tk()

root.title("******   攝氏溫度 轉 華式溫度   *******")

mainframe = ttk.Frame(root, padding="3 3 12 12")

mainframe.grid(column=0, row=0, sticky=(N, W, E, S))

mainframe.columnconfigure(0, weight=1)

mainframe.rowconfigure(0, weight=1)

Cels = StringVar()

Fahr = StringVar()

feet_entry = ttk.Entry(mainframe, width=7, textvariable=Cels)

feet_entry.grid(column=2, row=1, sticky=(W, E))

ttk.Label(mainframe, textvariable=Fahr).grid(column=2, row=2, sticky=(W, E))

ttk.Button(mainframe, text="Calculate", command=calculate).grid(column=1, row=3, sticky=E)

ttk.Button(mainframe, text="Quit", command= quit).grid(column=2, row=3, sticky=E)

ttk.Label(mainframe, text="請輸入 攝氏溫度 == ").grid(column=1, row=1, sticky=E)

ttk.Label(mainframe, text="     相當於    ").grid(column=1, row=2, sticky=E)

ttk.Label(mainframe, text="華式溫度").grid(column=3, row=2, sticky=W)

for child in mainframe.winfo_children(): child.grid_configure(padx=5, pady=5)

feet_entry.focus()

root.bind('<Return>', calculate)

root.mainloop()