Question

class Editor():
def __init__(self):
    self=Tkinter.Tk()
    EditedSongName=StringVar()
    EditedArtistName=StringVar()
    SongNameLabel = Label(self, text="Song Name:")
    SongNameLabel.pack()
    SongNameEntry = Entry( self,textvariable=EditedSongName)
    SongNameEntry.pack()
    ArtistNameLabel = Label(self, text="Artist Name:")
    ArtistNameLabel.pack()
    ArtistNameEntry = Entry( self,textvariable=EditedArtistName)
    ArtistNameEntry.pack()
    EditOkButton = Button( self, text="Ok", command=EditOk )
    EditOkButton.pack(anchor=CENTER)
    self.mainloop()

def EditOk(self):
    print "RSAOJ"
    Root.canvas.delete(SongName)
    SongName=canvas.create_text(650,30,text = EditedSongName,fill = 'black',font=("Times New Roman",35)    )
    canvas.pack()
    Root.canvas.delete(ArtistName)    
    ArtistName=canvas.create_text(650,90,text = EditedArtistName,fill = 'black',font=("Times New Roman",20)    )
    canvas.pack()
    self.destroy()

无论我如何更改功能，总会出现错误。 NameError：未定义全局名称“EditOk” 那是什么意思？我仍然无法得到阶级和自我的概念。

Answer 1

尝试

EditOkButton = Button( self, text="Ok", command=self.EditOk )

而不是

EditOkButton = Button( self, text="Ok", command=EditOk )

该方法仅针对特定实例

定义

为什么我不能在课堂上调用一个函数？

1 个答案: