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python - 如何使用循环来减少python中的代码

问题描述

我想在 tkinter 中创建很多小部件。我目前为此使用了很多代码。有没有办法总结代码？但是，我仍然希望能够捕获每个小部件的价值。编号上升到 200... 非常感谢！

'''

    self.A1_rubbing_marks_Type = tk.StringVar(self.A_Frame_measure)
    # Dictionary with options
    self.A1_choice_rubbing_marks=  ['No', 'Yes']
    self.A1_rubbing_marks_Type.set('') # set the default option
    self.A1_Menu_rubbing_marks = tk.OptionMenu(self.A_Frame_measure, self.A1_rubbing_marks_Type, *self.A1_choice_rubbing_marks, command=self.show_rubbing_marks_borders)
    self.A1_Menu_rubbing_marks.config(width=4)    
    self.A1_Menu_rubbing_marks.grid_forget()

    self.A2_rubbing_marks_Type = tk.StringVar(self.A_Frame_measure)
    # Dictionary with options
    self.A2_choice_rubbing_marks=  ['No', 'Yes']
    self.A2_rubbing_marks_Type.set('') # set the default option
    self.A2_Menu_rubbing_marks = tk.OptionMenu(self.A_Frame_measure, self.A2_rubbing_marks_Type, *self.A2_choice_rubbing_marks, command=self.show_rubbing_marks_borders)
    self.A2_Menu_rubbing_marks.config(width=4)    
    self.A2_Menu_rubbing_marks.grid_forget()

    self.A3_rubbing_marks_Type = tk.StringVar(self.A_Frame_measure)
    # Dictionary with options
    self.A3_choice_rubbing_marks=  ['No', 'Yes']
    self.A3_rubbing_marks_Type.set('') # set the default option
    self.A3_Menu_rubbing_marks = tk.OptionMenu(self.A_Frame_measure, self.A3_rubbing_marks_Type, *self.A3_choice_rubbing_marks, command=self.show_rubbing_marks_borders)
    self.A3_Menu_rubbing_marks.config(width=4)    
    self.A3_Menu_rubbing_marks.grid_forget()

    self.A4_rubbing_marks_Type = tk.StringVar(self.A_Frame_measure)
    # Dictionary with options
    self.A4_choice_rubbing_marks=  ['No', 'Yes']
    self.A4_rubbing_marks_Type.set('') # set the default option
    self.A4_Menu_rubbing_marks = tk.OptionMenu(self.A_Frame_measure, self.A4_rubbing_marks_Type, *self.A4_choice_rubbing_marks, command=self.show_rubbing_marks_borders)
    self.A4_Menu_rubbing_marks.config(width=4)    
    self.A4_Menu_rubbing_marks.grid_forget()

'''

我定义了一个字典，但我遇到了太多问题。

'''

    keys_blade_exchange_Type = [f"A{i}" for i in range(1, 200)]
    self.blade_exchange_Type = {k_2: tk.StringVar(self.A_Frame_measure) for k_2 in keys_blade_exchange_Type}
    self.choice_blade_exchange =  ['No', 'Yes']
    self.Menu_blade_exchange = {k_2: tk.OptionMenu(self.A_Frame_measure, *self.choice_blade_exchange ,  self.blade_exchange_Type[k_2]) for k_2 in keys_blade_exchange_Type}

    for r, (k_2, cb_2) in enumerate(self.Menu_blade_exchange.items(), start=2):
        cb_2.grid(row=r, column=1, sticky="W", padx=25, pady=4)

'''

标签： pythontkinter

解决方案

您可以使用一个简单的循环，setattr并且getattr.

for i in range(1, 201):
    setattr(self, f'A{i}__rubbing_marks_Type',  tk.StringVar(self.A_Frame_measure))
    setattr(self, f'A{i}_choice_rubbing_marks',  ['No', 'Yes'])
    getattr(self, f'A{i}_rubbing_marks_Type').set('')
    setattr(self, f'A{i}_Menu_rubbing_marks',
            tk.OptionMenu(self.A_Frame_measure, 
                          getattr(self, f'A{i}_rubbing_marks_Type'), 
                          *getattr(self, f'A{i}_choice_rubbing_marks'), 
                          command=self.show_rubbing_marks_borders))
    getattr(self, f'A{i}_Menu_rubbing_marks').config(width=4)    
    getattr(self, f'A{i}_Menu_rubbing_marks').grid_forget()

如果f-strings在您使用的 Python 版本中不可用，只需将它们替换为.format(i).

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