方逵GUI計算機eval函數比較美國與印度程式碼
419
美國計算機
印度計算機
from tkinter import *
def button_press(num):
global equation_text
equation_text = equation_text + str(num)
equation_label.set(equation_text)
def equals():
global equation_text
try:
total = str(eval(equation_text))
equation_label.set(total)
equation_text = total
except SyntaxError:
equation_label.set("syntax error")
equation_text = ""
except ZeroDivisionError:
equation_label.set("arithmetic error")
equation_text = ""
def clear():
global equation_text
equation_label.set("")
equation_text = ""
window = Tk()
window.title("方逵拷貝美國人程式碼")
window.geometry("500x500")
equation_text = ""
equation_label = StringVar()
label = Label(window, textvariable=equation_label, font=('consolas',20), bg="white", width=24, height=2)
label.pack()
frame = Frame(window)
frame.pack()
button1 = Button(frame, text=1, height=4, width=9, font=35,
command=lambda: button_press(1))
button1.grid(row=0, column=0)
button2 = Button(frame, text=2, height=4, width=9, font=35,
command=lambda: button_press(2))
button2.grid(row=0, column=1)
button3 = Button(frame, text=3, height=4, width=9, font=35,
command=lambda: button_press(3))
button3.grid(row=0, column=2)
button4 = Button(frame, text=4, height=4, width=9, font=35,
command=lambda: button_press(4))
button4.grid(row=1, column=0)
button5 = Button(frame, text=5, height=4, width=9, font=35,
command=lambda: button_press(5))
button5.grid(row=1, column=1)
button6 = Button(frame, text=6, height=4, width=9, font=35,
command=lambda: button_press(6))
button6.grid(row=1, column=2)
button7 = Button(frame, text=7, height=4, width=9, font=35,
command=lambda: button_press(7))
button7.grid(row=2, column=0)
button8 = Button(frame, text=8, height=4, width=9, font=35,
command=lambda: button_press(8))
button8.grid(row=2, column=1)
button9 = Button(frame, text=9, height=4, width=9, font=35,
command=lambda: button_press(9))
button9.grid(row=2, column=2)
button0 = Button(frame, text=0, height=4, width=9, font=35,
command=lambda: button_press(0))
button0.grid(row=3, column=0)
plus = Button(frame, text='+', height=4, width=9, font=35,
command=lambda: button_press('+'))
plus.grid(row=0, column=3)
minus = Button(frame, text='-', height=4, width=9, font=35,
command=lambda: button_press('-'))
minus.grid(row=1, column=3)
multiply = Button(frame, text='*', height=4, width=9, font=35,
command=lambda: button_press('*'))
multiply.grid(row=2, column=3)
divide = Button(frame, text='/', height=4, width=9, font=35,
command=lambda: button_press('/'))
divide.grid(row=3, column=3)
equal = Button(frame, text='=', height=4, width=9, font=35,
command=equals)
equal.grid(row=3, column=2)
decimal = Button(frame, text='.', height=4, width=9, font=35,
command=lambda: button_press('.'))
decimal.grid(row=3, column=1)
clear = Button(window, text='clear', height=4, width=12, font=35,
command=clear)
clear.pack()
window.mainloop()
美國計算機
印度計算機
from tkinter import * def button_press(num): global equation_text equation_text = equation_text + str(num) equation_label.set(equation_text) def equals(): global equation_text try: total = str(eval(equation_text)) equation_label.set(total) equation_text = total except SyntaxError: equation_label.set("syntax error") equation_text = "" except ZeroDivisionError: equation_label.set("arithmetic error") equation_text = "" def clear(): global equation_text equation_label.set("") equation_text = "" window = Tk() window.title("方逵拷貝美國人程式碼") window.geometry("500x500") equation_text = "" equation_label = StringVar() label = Label(window, textvariable=equation_label, font=('consolas',20), bg="white", width=24, height=2) label.pack() frame = Frame(window) frame.pack() button1 = Button(frame, text=1, height=4, width=9, font=35, command=lambda: button_press(1)) button1.grid(row=0, column=0) button2 = Button(frame, text=2, height=4, width=9, font=35, command=lambda: button_press(2)) button2.grid(row=0, column=1) button3 = Button(frame, text=3, height=4, width=9, font=35, command=lambda: button_press(3)) button3.grid(row=0, column=2) button4 = Button(frame, text=4, height=4, width=9, font=35, command=lambda: button_press(4)) button4.grid(row=1, column=0) button5 = Button(frame, text=5, height=4, width=9, font=35, command=lambda: button_press(5)) button5.grid(row=1, column=1) button6 = Button(frame, text=6, height=4, width=9, font=35, command=lambda: button_press(6)) button6.grid(row=1, column=2) button7 = Button(frame, text=7, height=4, width=9, font=35, command=lambda: button_press(7)) button7.grid(row=2, column=0) button8 = Button(frame, text=8, height=4, width=9, font=35, command=lambda: button_press(8)) button8.grid(row=2, column=1) button9 = Button(frame, text=9, height=4, width=9, font=35, command=lambda: button_press(9)) button9.grid(row=2, column=2) button0 = Button(frame, text=0, height=4, width=9, font=35, command=lambda: button_press(0)) button0.grid(row=3, column=0) plus = Button(frame, text='+', height=4, width=9, font=35, command=lambda: button_press('+')) plus.grid(row=0, column=3) minus = Button(frame, text='-', height=4, width=9, font=35, command=lambda: button_press('-')) minus.grid(row=1, column=3) multiply = Button(frame, text='*', height=4, width=9, font=35, command=lambda: button_press('*')) multiply.grid(row=2, column=3) divide = Button(frame, text='/', height=4, width=9, font=35, command=lambda: button_press('/')) divide.grid(row=3, column=3) equal = Button(frame, text='=', height=4, width=9, font=35, command=equals) equal.grid(row=3, column=2) decimal = Button(frame, text='.', height=4, width=9, font=35, command=lambda: button_press('.')) decimal.grid(row=3, column=1) clear = Button(window, text='clear', height=4, width=12, font=35, command=clear) clear.pack() window.mainloop()
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