改变这个代码: from tkinter import * # Import tkinter def procK() : print("OK button is clicked") def processCancel(): print ("Cancel button is clicked") root = Tk # Create a root window btOK = Button (root, text = "OK", fg = "red", command = prock) btCancel = Button (root, text = "Cancel", bg = "yellow' command = processCancel) btOK. pack () # Place the button in the window btCancel.pack() # Place the button in the window root.mainloop() # Create an event loop
时间: 2024-01-25 10:04:43 浏览: 24
这段代码存在一些语法上的错误,需要进行修正。下面是修改后的代码:
```python
from tkinter import *
def procK():
print("OK button is clicked")
def processCancel():
print("Cancel button is clicked")
root = Tk() # Create a root window
btOK = Button(root, text="OK", fg="red", command=procK)
btCancel = Button(root, text="Cancel", bg="yellow", command=processCancel)
btOK.pack() # Place the button in the window
btCancel.pack() # Place the button in the window
root.mainloop() # Create an event loop
```
主要修改包括:
1. 创建 root 窗口时应该加上括号,即 `root = Tk()`。
2. 创建 btCancel 按钮时,`bg` 参数的值应该是 `"yellow"`,而不是 `"yellow'"`,并且 `command` 参数的赋值语句末尾缺少了一个逗号。
3. 在创建按钮后,应该分别调用 `pack()` 方法将它们放置到窗口中。
相关问题
from tkinter import * #窗口模块 from tkinter import scrolledtext #滚动文本框模块 from tkinter import filedialog 这个写法有问题吗?
这个写法没有问题,它是从 tkinter 模块中分别导入了三个子模块:Tkinter 窗口模块,滚动文本框模块和文件对话框模块。但是,注意到在 Python 3.x 版本中,Tkinter 模块名已经改为 tkinter (小写)。因此,正确的写法应该是:
```
from tkinter import *
from tkinter import scrolledtext
from tkinter import filedialog
```
或者也可以写成:
```
import tkinter as tk
from tkinter import scrolledtext, filedialog
```
这样可以避免命名冲突,也更清晰明了。
请给下列代码添加注释:from tkinter import Tk from tkinter import StringVar, Entry, Button import math
```
# Import the necessary modules for creating a GUI application
from tkinter import Tk # Tk is the main module for creating and managing the main window of the GUI application
from tkinter import StringVar, Entry, Button # StringVar creates an instance of a variable that can be linked to a widget, such as an Entry widget or a Label widget. Entry is a widget that allows the user to enter text or numbers. Button is a widget that allows the user to trigger an event or run a function when clicked.
import math # Math is a built-in module that provides mathematical functions.
```