| 失效链接处理 | 
| 
      tkinter-gui-programming-example PDF 下载 
	相关截图: 
![]() 主要内容: 
		Beginning our text editor 
	
		Before writing any code, be sure to make a new folder to hold the files for this chapter. 
	
		Inside this folder, create a file called textarea.py. This file will hold the main part of our 
	
		text editor—a subclass of the Text widget. 
	
		The Text widget is such as a textarea tag within HTML. It holds multiple lines of text 
	
		and many formatting options. In the next chapter, we will see just how powerful this 
	
		widget can be with the use of concepts like tags and indexing, which alter the text's 
	
		appearance and give us control over certain regions of the text, allowing us to search all 
	
		over the document within. 
	
		For now, we will just need a simple instance of the widget with a couple of configuration 
	
		options set: 
	
		import tkinter as tk 
	
		class TextArea(tk.Text): 
	
		def __init__(self, master, **kwargs): 
	
		super().__init__(**kwargs) 
	
		self.master = master 
	
		self.config(wrap=tk.WORD) 
	
		Although initially short, this is all we need at the moment for our Text widget subclass. 
	
		After initializing the Text widget superclass, we assign the master widget as an attribute 
	
		which will allow us to send information back to the main application window in the future. 
	 | 
    




    
苏公网安备 32061202001004号


    