以下是 PySimpleGUI 库的示例程序，输入网址返回源码：

import PySimpleGUI as sg
import requests# 获取响应
def get_response(url):try:if url:response = requests.get(url=url, timeout=10)return responseexcept Exception as e:print(e)window['error'].update(e)# 控件布局
layout = [[sg.Text('url:'), sg.InputText(key='url', default_text='http://myip.ipip.net')],[sg.Text('status:'), sg.InputText(key='status')],[sg.Text('error:'), sg.InputText(key='error')],[sg.Submit(), sg.Exit()]]# 创建窗口
window = sg.Window('title', layout)# 事件监听
while 1:event, values = window.read()  # 监听print(event, values)# 退出if event == sg.WIN_CLOSED or event == 'Exit':breakurl = values['url']  # 根据key从控件中获取数据response = get_response(url)if response:window['status'].update(response.status_code)  # 更新控件中的文本sg.popup(response.content.decode('utf-8'))  # 弹出对话框window.close()