1、二维码

二维码是用于将数据编码和解码为机器可读的方法

import pyqrcode
 
# 设置二维码信息，这里设置是百度首页
s = "https://www.baidu.com"
 
# 生成二维码
url = pyqrcode.create(s)
 
# 保存二维码
url.svg("baidu.svg", scale=8)

例：扫🐎即是百度

2、加密与解密

创建个GUI小程序，使用Python进行加密与解密，这里我们使用无限循环，不停的进行加密或者解密

from tkinter import messagebox, simpledialog, Tk
 
 
def is_even(number):
    return number % 2 == 0
 
 
def get_even_letters(message):
    even_letters = []
    for counter in range(0, len(message)):
        if is_even(counter):
            even_letters.append(message[counter])
    return even_letters
 
 
def get_odd_letters(message):
    odd_letters = []
    for counter in range(0, len(message)):
        if not is_even(counter):
            odd_letters.append(message[counter])
    return odd_letters
 
 
def swap_letters(message):
    letter_list = []
    if not is_even(len(message)):
        message = message + 'x'
    even_letters = get_even_letters(message)
    odd_letters = get_odd_letters(message)
    for counter in range(0, int(len(message) / 2)):
        letter_list.append(odd_letters[counter])
        letter_list.append(even_letters[counter])
    new_message = ''.join(letter_list)
    return new_message
 
 
def get_task():
    task = simpledialog.askstring('任务', '你是否想要加密或解密信息?')
    return task
 
 
def get_message():
    message = simpledialog.askstring('信息', '输入相关信息: ')
    return message
 
 
root = Tk()
while True:
    task = get_task()
    if task == '加密':
        message = get_message()
        encrypted = swap_letters(message)
        messagebox.showinfo('密电的密文为:', encrypted)
 
    elif task == '解密':
        message = get_message()
        decrypted = swap_letters(message)
        messagebox.showinfo('密电的明文为:', decrypted)
    else:
        break
 
root.mainloop()

例如：

（1）先选择加密或者解密

（2）选择加密或解密信息

（3）加密成功显示

3、文本编辑器

使用Python创建一个文本编辑器GUI，可以创建、打开、保存文件

import tkinter as tk
from tkinter.filedialog import askopenfilename, asksaveasfilename
 
def open_file():
    """打开"""
    filepath = askopenfilename(
        filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")]
    )
    if not filepath:
        return
    txt_edit.delete(1.0, tk.END)
    with open(filepath, "r") as input_file:
        text = input_file.read()
        txt_edit.insert(tk.END, text)
    window.title(f"文本编辑器 - {filepath}")
 
def save_file():
    """保存"""
    filepath = asksaveasfilename(
        defaultextension="txt",
        filetypes=[("Text Files", "*.txt"), ("All Files", "*.*")],
    )
    if not filepath:
        return
    with open(filepath, "w") as output_file:
        text = txt_edit.get(1.0, tk.END)
        output_file.write(text)
    window.title(f"文本编辑器 - {filepath}")
 
window = tk.Tk()
window.title("文本编辑器")
window.rowconfigure(0, minsize=800, weight=1)
window.columnconfigure(1, minsize=800, weight=1)
 
txt_edit = tk.Text(window)
fr_buttons = tk.Frame(window, relief=tk.RAISED, bd=2)
btn_open = tk.Button(fr_buttons, text="打开", command=open_file)
btn_save = tk.Button(fr_buttons, text="保存", command=save_file)
 
btn_open.grid(row=0, column=0, sticky="ew", padx=5, pady=5)
btn_save.grid(row=1, column=0, sticky="ew", padx=5)
 
fr_buttons.grid(row=0, column=0, sticky="ns")
txt_edit.grid(row=0, column=1, sticky="nsew")
 
window.mainloop()

结果：