我会使用不同的框架将我的计算器分成几个部分(一个用于显示计算,一个带有按钮但不具有 2 个功能,最后一个按钮具有 2 个功能)。
我将其拆分的原因是因为我会使用破坏对象并使新对象拆分意味着您可以破坏所需的框架而不是特定的按钮(需要更少的代码)。同样为此,我将创建 3 个 GUI defs。一种是具有一种功能的按钮和显示计算的位。一个是具有 2 个功能的按钮(它们的第一个功能),最后一个是具有 2 个功能的按钮(它们的第二个功能)。决定使用哪个 GUI gen def 有一个带有全局变量的 if 语句,每次调用第二个功能按钮时都会更改,并决定使用哪个 def。
如果只是您想要更改的命令而不是标签和命令,我将有一个变量,即它们的 1 或 2(单击第二个按钮时更改)然后在您的定义中(您的按钮调用的那些)有一个 if 语句决定是执行正常动作(例如 cos)还是第二个动作(例如 cos-1)。
下面的代码使用了我在第一段中描述的内容:
from tkinter import *
class Calc(Frame):
def __init__(self, master):
self.modefunction = 1
""" Initialize the frame. """
super(Calc,self).__init__(master)
self.grid()
self.calculations_frm = Frame(self, width=100, height=30)#bg = "red"
self.calculations_frm.grid(row = 0, column = 0, columnspan=2)
self.buttons_frm = Frame(self, width= 50, height=30,)#bg = "green")
self.buttons_frm.grid(row = 1, column = 1)
self.buttons_2_functions_1_frm = Frame(self, width=50, height=30)#bg = "blue")
self.buttons_2_functions_1_frm.grid(row = 1, column = 0)
self.create_GUI()
def create_show_calculations(self):
self.calculation_lbl = Label(self.calculations_frm, text = "will show caluclations here").pack()
def create_buttons(self):
#mc stands for mode change
self.mode_change_btn = Button(self.buttons_frm, text = "mc", command = self.mode_change, height = 1, width = 5)
self.mode_change_btn.grid(row = 0,column = 0)
self.plus_btn = Button(self.buttons_frm, text = "plus", height = 1, width = 5)
self.plus_btn.grid(row = 1,column = 0)
def create_GUI(self):
self.create_show_calculations()
self.create_buttons()
self.create_1_function_gui()
def create_1_function_gui(self):
self.tan_btn = Button(self.buttons_2_functions_1_frm, text = "tan", height = 1, width = 5)
self.tan_btn.grid(row = 0,column = 0)
self.san_btn = Button(self.buttons_2_functions_1_frm, text = "san", height = 1, width = 5)
self.san_btn.grid(row = 0,column = 1)
self.coz_btn = Button(self.buttons_2_functions_1_frm, text = "coz", height = 1, width = 5)
self.coz_btn.grid(row = 1,column = 0)
def create_2_function_gui(self):
self.buttons_2_functions_2_frm = Frame(self, width=50, height=30)#bg = "blue")
self.buttons_2_functions_2_frm.grid(row = 1, column = 0)
self.inverse_tan_btn = Button(self.buttons_2_functions_2_frm, text = "tan-1", height = 1, width = 5)
self.inverse_tan_btn.grid(row = 0,column = 0)
self.inverse_san_btn = Button(self.buttons_2_functions_2_frm, text = "san-1", height = 1, width = 5)
self.inverse_san_btn.grid(row = 0,column = 1)
self.inverse_coz_btn = Button(self.buttons_2_functions_2_frm, text = "coz-1", height = 1, width = 5)
self.inverse_coz_btn.grid(row = 1,column = 0)
def mode_change(self):
if self.modefunction == 1:
self.buttons_2_functions_1_frm.destroy()
self.modefunction = 2
self.buttons_2_functions_2_frm = Frame(self, width=50, height=30)#bg = "blue")
self.buttons_2_functions_2_frm.grid(row = 1, column = 0)
self.create_2_function_gui()
else:
self.buttons_2_functions_2_frm.destroy()
self.modefunction = 1
self.buttons_2_functions_1_frm = Frame(self, width=50, height=30)#bg = "blue")
self.buttons_2_functions_1_frm.grid(row = 1, column = 0)
self.create_1_function_gui()
root = Tk()
root.title("booking system")
root.geometry("500x500")
root.configure(bg="white")
app = Calc(root)
root.mainloop()