这是我的代码:
print(ask('Name:','Hello!'))
当我打电话给代码时:
Traceback (most recent call last):
File "C:\gui.py", line 16, in <module>
ask('Name:','Hello!')
File "C:\gui.py", line 15, in ask
return entry.get()
File "C:\Python34\lib\tkinter\__init__.py", line 2520, in get
return self.tk.call(self._w, 'get')
_tkinter.TclError: invalid command name ".48148176"
我明白了:
insert_amount
我在32位Windows 7上使用Python 3.4.3。
答案 0 :(得分:4)
当您按下按钮时,应用程序将被销毁,mainloop
结束,您尝试在已销毁的应用程序中返回Entry
窗口小部件的内容。在销毁应用程序之前,您需要保存entry
的内容。不是通过这种方式进行攻击,而是以适当的方式设置Tkinter应用程序会更好,例如使用面向对象的方法。
class App:
# 'what' and 'why' should probably be fetched in a different way, suitable to the app
def __init__(self, parent, what, why):
self.parent = parent
self.parent.title(why)
self.label = Label(self.parent, text=what)
self.label.pack()
self.entry = Entry(self.parent)
self.entry.pack()
self.button = Button(parent, text='OK', command=self.use_entry)
self.button.pack()
def use_entry(self):
contents = self.entry.get()
# do stuff with contents
self.parent.destroy() # if you must
root = Tk()
app = App(root, what, why)
root.mainloop()