【问题标题】:Problem with a Tkinter Menu in PythonPython中的Tkinter菜单问题
【发布时间】:2011-05-20 03:33:18
【问题描述】:

我实际上正在使用 Tkinter 在 Python 中开发图像编辑器(我知道 Python 不是图像编辑的最佳选择,但那是学校的,我没有选择),我想做的是保存每个打开的文件在另一个文件中添加快捷方式到文件菜单中最后五个文件。 问题是一开始没有问题,但是当我打开一个新图像时,它无法重新配置旧的快捷方式。 该错误似乎表明它尝试配置分隔符而不是命令。在玩了一些 print() 之后,Tkinter 似乎看到了前五个条目,然后跳转了接下来的三个,然后看到了所有其他条目。 我的头有点乱。

代码如下:

    f=open('.recentlyUsed', 'r+')
    f.readline() #Skipping the empty first line.
    recents=f.read().split('\n')
    c=0
    recents2=[] 
    for i in recents:    #Deleting the doubles.
        if i not in recents2:
            recents2+=[i]
    recents=recents2[:]
    c=0
    while fichier.index(c)==c: #Getting the number of files already displayed in
        c+=1                        #the menu.
        print(fichier.entryconfigure(c)) #Test : Printing the entry to know which 
    c-=7                                      #Tkinter sees or not.
    if c>=0:
        fichier.insert_separator(5)      #Doesn't insert a separator if there's no file displayed.
    if len(recents)>=1:  #If there's already a file displayed, juste modifying the label (the command doesn't need to.)
        if c>=1:
            fichier.entryconfigure(7, label=srecents[-1])
        else:
            fichier.insert_command(6, command=lambda: openRecent(-1), label=recents[-1])
        if len(recents)>=2:
            if c>=2:
                fichier.entryconfig(8, label=recents[-2])
            else:
                fichier.insert_command(6, command=lambda: openRecent(-2), label=recents[-2])
            if len(recents)>=3:
                if c>=3:
                    fichier.entryconfig(9, label=.recents[-3])
                else:
                    fichier.insert_command(6, command=lambda: openRecent(-3), label=recents[-3])
                if len(recents)>=4:
                    if c>=4:
                        fichier.entryconfig(10, label=recents[-4])
                    else:
                        fichier.insert_command(6, command=lambda: openRecent(-4), label=recents[-4])
                    if len(recents)>=5:
                        if c>=5:
                            fichier.entryconfig(11, label=recents[-5])
                        else:
                            fichier.insert_command(6, command=lambda: openRecent(-5), label=recents[-5])
    f.close()

此代码返回以下内容:

{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Nouveau'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3071116428nouveau'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Ouvrir...'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056134764open'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Sauver'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'disabled'), 'command': ('command', '', '', '', '3056134892save'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Sauver sous...'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'disabled'), 'command': ('command', '', '', '', '3056134700saveAs'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'background': ('background', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Quitter'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056074828destroy'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Quitter'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056074828destroy'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}

#Now I try oening a new image (whether by clicking on one of the shortcut to a recent picture or by the open function a defined in the project).

{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Nouveau'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3071116428nouveau'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Ouvrir...'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', <bytecode object at 0x9870a68>), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Sauver'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'disabled'), 'command': ('command', '', '', '', '3056134892save'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Sauver sous...'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'disabled'), 'command': ('command', '', '', '', '3056134700saveAs'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/workspace/projet1/lenna.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '160341260<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/workspace/projet1/boats.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '160341292<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/Projet_Programmation_1/Images/lena2.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056177964<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'background': ('background', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Quitter'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056074828destroy'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Quitter'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056074828destroy'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}

Exception in Tkinter callback
Traceback (most recent call last):
  File "/usr/lib/python3.1/tkinter/__init__.py", line 1402, in __call__
     return self.func(*args)
  File "/home/aquaj/workspace/projet1/main.py", line 244, in open
     self.recentUse(add=1)
  File "/home/aquaj/workspace/projet1/main.py", line 307, in recentUse
     self.fichier.entryconfig(9, label=self.recents[-3])
  File "/usr/lib/python3.1/tkinter/__init__.py", line 2669, in entryconfigure
     return self._configure(('entryconfigure', index), cnf, kw)
  File "/usr/lib/python3.1/tkinter/__init__.py", line 1187, in _configure
     self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: unknown option "-label"

它应该显示在哪里:

{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Nouveau'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3071116428nouveau'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Ouvrir...'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', <bytecode object at 0x9870a68>), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Sauver'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'disabled'), 'command': ('command', '', '', '', '3056134892save'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Sauver sous...'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'disabled'), 'command': ('command', '', '', '', '3056134700saveAs'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'background': ('background', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/workspace/projet1/feuille.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056177964<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/workspace/projet1/bateaux.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056177964<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/workspace/projet1/lenna.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '160341260<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/workspace/projet1/boats.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '160341292<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', '/home/aquaj/Projet_Programmation_1/Images/lena2.pgm'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056177964<lambda>'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'background': ('background', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Quitter'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056074828destroy'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}
{'foreground': ('foreground', '', '', '', ''), 'accelerator': ('accelerator', '', '', '', ''), 'hidemargin': ('hidemargin', '', '', 0, 0), 'label': ('label', '', '', '', 'Quitter'), 'underline': ('underline', '', '', -1, -1), 'bitmap': ('bitmap', '', '', '', ''), 'columnbreak': ('columnbreak', '', '', 0, 0), 'state': ('state', '', '', <index object at 0x968c230>, 'normal'), 'command': ('command', '', '', '', '3056074828destroy'), 'background': ('background', '', '', '', ''), 'compound': ('compound', 'compound', 'Compound', <index object at 0x9689428>, 'none'), 'font': ('font', '', '', '', ''), 'image': ('image', '', '', '', ''), 'activeforeground': ('activeforeground', '', '', '', ''), 'activebackground': ('activebackground', '', '', '', '')}

那么,如果有人能看出问题出在哪里...?

【问题讨论】:

    标签: menu python-3.x tkinter


    【解决方案1】:

    最简单的解决方案是从头开始重新创建整个菜单,而不是尝试更新某些项目。它快速、简单且几乎万无一失。

    如果您决定将最近的项目设置为菜单上的最后一项,则可以仅删除最近的文件并添加新的文件集。这很容易,因为您知道最近文件开始的索引,除非您有一个因其他原因而增长和缩小的菜单。

    因此,不要尝试就地更新项目,只需删除并重新创建即可。

    【讨论】:

      【解决方案2】:

      if 的长链绝对是错误的做法。 我建议您先删除所有旧的最近条目,然后添加新条目。

      【讨论】:

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