陳宛沂eval=evaluate函數calculator美國男生印度女生,調色板

w3schools eval

美國男生Bro Code

印度女生Salow Studios

from tkinter import *
def buttonClick(number):
    global operator
    operator = operator + str(number)
    input_value.set(operator)
def buttonClear():
    global operator
    operator = ""
    input_value.set("")
def buttonEqual():
    global operator
    result = str(eval(operator))
    input_value.set(result)
    operator = ""
main = Tk()
main.title("陳宛沂Calculator")

operator = ""
input_value = StringVar()
display_text = Entry(main, font=("arial", 20, "bold"), textvariable=input_value, bd=30, insertwidth=4,
                     bg="powder blue", justify=RIGHT)
display_text.grid(columnspan=4)

# Row 1 7 8 9 +

btn_7 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="7", command=lambda: buttonClick(7))
btn_7.grid(row=1, column=0)

btn_8 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="8", command=lambda: buttonClick(8))
btn_8.grid(row=1, column=1)

btn_9 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="9", command=lambda: buttonClick(9))
btn_9.grid(row=1, column=2)

btn_add = Button(main, padx=16, bd=8, fg="black",
                 font=("arial", 20, "bold"), text="+", command=lambda: buttonClick("+"))
btn_add.grid(row=1, column=3)

# Row 2 - 4 5 6 -

btn_4 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="4", command=lambda: buttonClick(4))
btn_4.grid(row=2, column=0)

btn_5 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="5", command=lambda: buttonClick(5))
btn_5.grid(row=2, column=1)

btn_6 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="6", command=lambda: buttonClick(6))
btn_6.grid(row=2, column=2)

btn_sub = Button(main, padx=16, bd=8, fg="black",cursor='circle',
                 font=("arial", 20, "bold"), text="-", command=lambda: buttonClick("-"))
btn_sub.grid(row=2, column=3)

# Row 3 - 1 2 3 *

btn_1 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="4", command=lambda: buttonClick(1))
btn_1.grid(row=3, column=0)

btn_2 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="5", command=lambda: buttonClick(2))
btn_2.grid(row=3, column=1)

btn_3 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="6", command=lambda: buttonClick(3))
btn_3.grid(row=3, column=2)

btn_mul = Button(main, padx=16, bd=8, fg="black",
                 font=("arial", 20, "bold"), text="*", command=lambda: buttonClick("*"))
btn_mul.grid(row=3, column=3)

# Row 4 - 0 C = /

btn_0 = Button(main, padx=16, bd=8, fg="black",
               font=("arial", 20, "bold"), text="0", command=lambda: buttonClick(0))
btn_0.grid(row=4, column=0)

btn_clear = Button(main, padx=16, bd=8, fg="black",
                   font=("arial", 20, "bold"), text="C", command=buttonClear)
btn_clear.grid(row=4, column=1)

btn_equal = Button(main, padx=16, bd=8, fg="black",
                   font=("arial", 20, "bold"), text="=", command=buttonEqual)
btn_equal.grid(row=4, column=2)

btn_div = Button(main, padx=16, bd=8, fg="black",
                 font=("arial", 20, "bold"), text="/", command=lambda: buttonClick("/"))
btn_div.grid(row=4, column=3)

main.mainloop()