将 tkinter 按钮转换为菜单项

Question

我试图通过将按钮换成菜单项来重新利用我为文本编辑器编写的一些代码。 我当前运行的代码没有错误。 但是，菜单项不会填充到根 window 中。 我已经为带有按钮的原始文本编辑器和带有下面菜单项的新文本编辑器提供了代码。

#带按钮的编辑器

import tkinter as tk
import tkinter.scrolledtext as ts
import os.path

class Editor:
    def __init__(self, win):
        self.root = win
        self.root.title('editor')
        self.root.geometry('500x400+600+200')
        
        #heading
        self.lblHeading = tk.Label(self.root,
                                   text = 'Text editor',
                                   font = ('Times New Roman', 14),
                                   bg = 'white')
        self.lblHeading.place(relx = 0.5, rely = 0.1, anchor = tk.CENTER)
        

        self.textarea = ts.ScrolledText(self.root,
                                        wrap = tk.WORD,
                                        width = 50,
                                        height = 10,
                                        font = ('Times New Roman', 12))
        
        self.textarea.place(relx = 0.5, rely = 0.4, anchor = tk.CENTER)
        
        
        #buttons
        self.Savebtn = tk.Button(self.root, text = 'Save', command = self.save)
        self.Savebtn.place(relx = 0.1, rely = 0.8, anchor = tk.SE)
        
        self.Closebtn = tk.Button(self.root, text = 'Close', command = self.close)
        self.Closebtn.place(relx = 0.2, rely = 0.8, anchor = tk.SE)
        
    def save(self):
        save_path = '../raw/'
        content = self.textarea.get('1.0', tk.END)
        saveas = 'editorText'
        complete_file = os.path.join(save_path, saveas+'.txt')
        saveas = open(complete_file, 'w')
        saveas.write(content)
        
    def close(self):
        self.lblHeading.place_forget()
        self.textarea.place_forget()
        self.Savebtn.place_forget()
        self.Closebtn.place_forget()
        
def main():
    root = tk.Tk()
    Editor(root)
    root.mainloop()
     
if __name__ == '__main__':
    main()

#带有菜单项的编辑器

import tkinter as tk
import tkinter.scrolledtext as ts
import os.path

class Editor:
    def __init__(self, win):
        self.root = win
        self.root.title('editor')
        self.root.geometry('500x400+600+200')
        
        #heading
        self.lblHeading = tk.Label(self.root,
                                   text = 'Text editor',
                                   font = ('Times New Roman', 14),
                                   bg = 'white')
        self.lblHeading.place(relx = 0.5, rely = 0.1, anchor = tk.CENTER)
        
        #initializing scrolled textbox
        self.textarea = ts.ScrolledText(self.root,
                                        wrap = tk.WORD,
                                        width = 50,
                                        height = 10,
                                        font = ('Times New Roman', 12))
        
        self.textarea.place(relx = 0.5, rely = 0.4, anchor = tk.CENTER)

        self.menubar = tk.Menu(win)
        # define file menu items
        self.filemenu = tk.Menu(self.menubar, tearoff=0)
        self.filemenu.add_command(label="Save", command=self.save)
        self.filemenu.add_command(label="Close", command=self.close)
        self.menubar.add_cascade(label="File", menu=self.filemenu)

    def save(self):
        save_path = '../raw/'
        content = self.textarea.get('1.0', tk.END)
        saveas = 'editorText'
        complete_file = os.path.join(save_path, saveas+'.txt')
        saveas = open(complete_file, 'w')
        saveas.write(content)
        
    def close(self):
        self.lblHeading.place_forget()
        self.textarea.place_forget()
        
def main():
    root = tk.Tk()
    Editor(root)
    root.mainloop()
    root.config(menu=self.menubar)
     
if __name__ == '__main__':
    main()

Answer 1

你必须告诉self.root有一个菜单并且它应该显示它。 将self.root.config(menu=self.menubar)添加到Editor.__init__方法的末尾应该可以解决问题。