Question

运行以下代码并单击tkinter按钮时;它会产生以下错误：

Exception in Tkinter callback
Traceback (most recent call last):
  File "D:\Scypy\lib\tkinter\__init__.py", line 1699, in __call__
    return self.func(*args)
  File "D:\modpu\Documents\Python\DelMe.py", line 5, in click
    OutputBox.delete(0, END)
  File "D:\Scypy\lib\tkinter\__init__.py", line 3133, in delete
    self.tk.call(self._w, 'delete', index1, index2)
_tkinter.TclError: bad text index "0"

由于某种原因，代码成功清除了输入框中的文本，但未能清除输出框中的文本（它会崩溃）。

对此的任何帮助将不胜感激，谢谢。

from tkinter import *

def click():
    MainTextBox.delete(0, END)  #This works
    OutputBox.delete(0, END) #This doesn't work

GUI = Tk()
MainTextBox = Entry(GUI, width = 20, bg = "white")
MainTextBox.grid(row = 0, column = 0, sticky = W)
Button(GUI, text = "SUBMIT", width = 6, command = click).grid(row = 1, column = 0, sticky = W)
OutputBox = Text(GUI, width = 100, height = 10, wrap = WORD, background = "orange")
OutputBox.grid(row = 4, column = 0, sticky = W)
OutputBox.insert(END, "Example text")

GUI.mainloop()

Answer 1

def click(): 
    OutputBox.delete('1.0', END)

有时，当您尝试在IDLE中运行整数时，它不支持整数，我知道它很令人沮丧，但是是的，这确实可行。

Answer 2

def click(): 
    OutputBox.delete('0', END)

在Python 3.8.1中为我工作，因为'1.0'引发错误。

无法清除输出文本：tkinter.TclError：错误文本索引“0”

2 个答案: