在 Python 中使用 Tkinter 的记事本应用程序和源代码

from tkinter import * from tkinter.filedialog import askopenfile, asksaveasfile, askopenfilename, asksaveasfilename import os from pygments import highlight counter = 1 class TextEditor: def donothing(self): self.filewin = Toplevel(self.root) button = Button(self.filewin, text="Do not do anything") button.pack() def open_file(self): self.file = askopenfile(mode='r') if self.file is not None: self.text.delete(1.0, "end-1c") content = self.file.read() self.filename = self.file.name self.text.insert(INSERT, content) self.filename_only = self.filename.split("/")[-1] self.root.title(self.filename_only+"-Notepad") def save_file(self): if(self.filename != None and self.file != None): f = open(self.filename, "r+") f.seek(0) f.truncate() self.text_data = self.text.get(1.0, "end-1c") f.write(self.text_data) else: self.file = asksaveasfile() self.filename = self.file.name self.text_data = self.text.get(1.0, "end-1c") f = open(self.filename, "r+") f.write(self.text_data) self.filename_only = self.filename.split("/")[-1] self.root.title(self.filename_only+"-Notepad") def save_as_file(self): self.file = asksaveasfile() self.filename = self.file.name self.text_data = self.text.get(1.0, "end-1c") f = open(self.filename, "r+") f.write(self.text_data) self.filename_only = self.filename.split("/")[-1] self.root.title(self.filename_only+"-Notepad") def close_file(self): self.text.delete(1.0,"end-1c") self.root.title("Untitled"+"-Notepad") self.file.close() self.file = None self.filename = None def new(self): global counter,win counter +=1 win[counter] = TextEditor() def dark(self): self.text.config(foreground = "white",background="black",insertbackground="white") def light(self): self.text.config(foreground = "black",background="white",insertbackground="black") def __init__(self): self.root = Tk() scrollbar = Scrollbar(self.root) scrollbar.pack(side=RIGHT, fill=Y) self.root.title("Untitled-Notepad") self.file = None self.filename = None menubar = Menu(self.root) self.filemenu = Menu(menubar, tearoff=0) self.filemenu.add_command(label="New", command=self.new) self.filemenu.add_command(label="Open", command=self.open_file) self.filemenu.add_command(label="Save", command=self.save_file) self.filemenu.add_command(label="Save as...", command=self.save_as_file) self.filemenu.add_command(label="Close", command=self.close_file) self.filemenu.add_separator() self.filemenu.add_command(label="Exit", command=self.root.quit) menubar.add_cascade(label="File", menu=self.filemenu) editmenu = Menu(menubar, tearoff=0) editmenu.add_command(label="Dark", command=self.dark) editmenu.add_command(label="Light", command=self.light) menubar.add_cascade(label="Theme", menu=editmenu) helpmenu = Menu(menubar, tearoff=0) helpmenu.add_command(label="Help Index", command=self.donothing) helpmenu.add_command(label="About...", command=self.donothing) menubar.add_cascade(label="Help", menu=helpmenu) self.root.config(menu=menubar) self.text = Text(self.root) self.text.pack() self.text.tag_add("here", "1.0", "1.4") self.text.tag_add("start", "1.8", "1.13") self.text.tag_config("here", background="yellow", foreground="blue") self.text.tag_config("start", background="aqua", foreground="green") self.text.config(insertbackground="black") self.root.mainloop() win = dict() win[counter] = TextEditor()