请把这段代码生成一个GUI，在GUI里面，每次生成5组双色球号码，设置一个更换随机号码的按钮，退出按钮，显示当前的时间年，月，日，小时，分钏，秒。

抱歉，作为AI语言模型，我无法生成GUI界面。但我可以提供Python代码示例，您可以在此基础上自己设计GUI界面。具体代码如下：

import random
import tkinter as tk
import time

class DoubleColorBallGenerator:
    def __init__(self):
        self.numbers = list(range(1, 34))
        self.balls = list(range(1, 17))

    def generate(self):
        red_balls = random.sample(self.numbers, 5)
        red_balls.sort()
        blue_ball = random.choice(self.balls)
        return red_balls, blue_ball

class App:
    def __init__(self, master):
        self.generator = DoubleColorBallGenerator()
        self.red_balls_var = tk.StringVar()
        self.blue_ball_var = tk.StringVar()
        self.time_var = tk.StringVar()
        self.time_var.set(self.get_current_time())

        self.red_balls_label = tk.Label(master, textvariable=self.red_balls_var, font=('Arial', 16))
        self.blue_ball_label = tk.Label(master, textvariable=self.blue_ball_var, font=('Arial', 16))
        self.time_label = tk.Label(master, textvariable=self.time_var, font=('Arial', 12))
        self.generate_button = tk.Button(master, text='生成', command=self.generate)
        self.quit_button = tk.Button(master, text='退出', command=master.quit)
        self.change_button = tk.Button(master, text='换一组', command=self.generate)

        self.red_balls_label.pack()
        self.blue_ball_label.pack()
        self.time_label.pack()
        self.generate_button.pack(side='left', padx=10)
        self.change_button.pack(side='left', padx=10)
        self.quit_button.pack(side='left', padx=10)

    def generate(self):
        red_balls, blue_ball = self.generator.generate()
        self.red_balls_var.set('红球：' + ' '.join(str(ball) for ball in red_balls))
        self.blue_ball_var.set('蓝球：' + str(blue_ball))
        self.time_var.set(self.get_current_time())

    def get_current_time(self):
        return time.strftime('%Y-%m-%d %H:%M:%S', time.localtime())

root = tk.Tk()
root.title('双色球号码生成器')
app = App(root)
root.mainloop()