使用python实现计算器桌面客户端-python源码

import tkinter from tkinter import * from tkinter import messagebox root = tkinter.Tk() root.geometry("450x500+200+200") root.resizable(0,0) root.title("Calculator") val = "" A = 0 operator = "" def entered(event): btnc.config(bg="#ff4117") def left(event): btnc.config(bg="#fc876d") def entered_(event): btnx.config(bg="#ffd500") def left_(event): btnx.config(bg="#faed5f") def btn_1_isclicked(): global val val = val + "1" data.set(val) def btn_2_isclicked(): global val val = val + "2" data.set(val) def btn_3_isclicked(): global val val = val + "3" data.set(val) def btn_4_isclicked(): global val val = val + "4" data.set(val) def btn_5_isclicked(): global val val = val + "5" data.set(val) def btn_6_isclicked(): global val val = val + "6" data.set(val) def btn_7_isclicked(): global val val = val + "7" data.set(val) def btn_8_isclicked(): global val val = val + "8" data.set(val) def btn_9_isclicked(): global val val = val + "9" data.set(val) def btn_0_isclicked(): global val val = val + "0" data.set(val) def btn_dot_isclicked(): global val val = val + "." data.set(val) def btn_plus_clicked(): global A global operator,val A = float(val) operator = "+" val = val + "+" data.set(val) def btn_minus_clicked(): global A global operator,val A = float(val) operator = "-" val = val + "-" data.set(val) def btn_mult_clicked(): global A global operator,val A = float(val) operator = "*" val = val + "*" data.set(val) def btn_div_clicked(): global A global operator,val A = float(val) operator = "/" val = val + "/" data.set(val) def btn_exp_clicked(): global A global operator,val A = float(val) operator = "^" val = val + "^" data.set(val) def btn_c_pressed(): global A,operator,val val = "" A = 0 operator = "" data.set(val) def btn_x_pressed(): global A,operator,val v = val[-1] val = val[:len(val)-1] if v in ['+','-','*','/']: operator="" operator = "" data.set(val) def result(): global A,operator,val val2 = val if operator == "+": x = float((val2.split("+")[1])) C = A + x val = str(C) data.set(val) elif operator == "-": x = float((val2.split("-")[1])) C = A - x val = str(C) data.set(val) elif operator == "*": x = float((val2.split("*")[1])) C = A * x val = str(C) data.set(val) elif operator == "/": x = float((val2.split("/")[1])) if x == 0: messagebox.showerror("Error", "Division By 0 Not Supported") A = "" val = "" data.set(val) else: C = A / x data.set(C) elif operator == "^": x = float((val2.split("^")[1])) C = A ** x val = str(C) data.set(val) else: if '+' in val2 or '-' in val2 or '*' in val2 or '/' in val2 or '^' in val2: return x=float(val2) C = x * x val = str(C) data.set(val) data = StringVar() lbl = Label( root, text = "Label", anchor = SE, font = ("Verdana", 20), textvariable = data, background = "#ffffff", fg = "#000000", ) lbl.pack(expand = True, fill = "both") btnrow0 = Frame(root) btnrow0.pack(expand = True, fill = "both") btnrow1 = Frame(root) btnrow1.pack(expand = True, fill = "both") btnrow2 = Frame(root) btnrow2.pack(expand = True, fill = "both") btnrow3 = Frame(root) btnrow3.pack(expand = True, fill = "both") btnrow4 = Frame(root) btnrow4.pack(expand = True, fill = "both") btnc = Button( btnrow0, text = "C", font = ("Verdana", 22), bg = "#fc876d", relief = GROOVE, border = 0, command = btn_c_pressed, ) btnc.pack(side = LEFT, expand = True, fill = "both",) btnc.bind("<Enter>",entered) btnc.bind("<Leave>", left) btnx = Button( btnrow0, text = "Del", font = ("Verdana", 22), bg="#faed5f", relief = GROOVE, border = 0, command = btn_x_pressed, ) btnx.pack(side = LEFT, expand = True, fill = "both",) btnx.bind("<Enter>",entered_) btnx.bind("<Leave>", left_) btnpower = Button( btnrow0, text = "EXP", font = ("Verdana", 22), bg = "Red", relief = GROOVE, border = 0, command = btn_exp_clicked, ) btnpower.pack(side = LEFT, expand = True, fill = "both",) btnsq = Button( btnrow0, text = "Sq", font = ("Verdana", 22), bg="green", relief = GROOVE, border = 0, command = result, ) btnsq.pack(side = LEFT, expand = True, fill = "both",) btn1 = Button( btnrow1, text = "1", font = ("Verdana", 22), bg = "#b9ebfa", relief = GROOVE, border = 0, command = btn_1_isclicked, ) btn1.pack(side = LEFT, expand = True, fill = "both",) btn2 = Button( btnrow1, text = "2", font = ("Verdana", 22), bg = "#b9ebfa", relief = GROOVE, border = 0, command = btn_2_isclicked, ) btn2.pack(side = LEFT, expand = True, fill = "both",) btn3 = Button( btnrow1, text = "3", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_3_isclicked, ) btn3.pack(side = LEFT, expand = True, fill = "both",) btnplus = Button( btnrow1, text = "+", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_plus_clicked, ) btnplus.pack(side = LEFT, expand = True, fill = "both",) btn4 = Button( btnrow2, text = "4", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_4_isclicked, ) btn4.pack(side = LEFT, expand = True, fill = "both",) btn5 = Button( btnrow2, text = "5", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_5_isclicked, ) btn5.pack(side = LEFT, expand = True, fill = "both",) btn6 = Button( btnrow2, text = "6", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_6_isclicked, ) btn6.pack(side = LEFT, expand = True, fill = "both",) btnminus = Button( btnrow2, text = "-", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_minus_clicked, ) btnminus.pack(side = LEFT, expand = True, fill = "both",) btn7 = Button( btnrow3, text = "7", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_7_isclicked, ) btn7.pack(side = LEFT, expand = True, fill = "both",) btn8 = Button( btnrow3, text = "8", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_8_isclicked, ) btn8.pack(side = LEFT, expand = True, fill = "both",) btn9 = Button( btnrow3, text = "9", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_9_isclicked, ) btn9.pack(side = LEFT, expand = True, fill = "both",) btnmult = Button( btnrow3, text = "*", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = btn_mult_clicked, ) btnmult.pack(side = LEFT, expand = True, fill = "both",) btndot = Button( btnrow4, text = ".", font = ("Verdana", 22), bg="#b9ebfa", relief = GROOVE, border = 0, command = b