python tkiner实现 一个小小的图片翻页功能的示例代码

 import tkinter as tk import tkinter.messagebox import copy import os,sys def get_picture(dirs): '''获得所有图片''' picture_list = [] for dir,dir_abs,files in os.walk(dirs): for file in files: if file.endswith('.gif'): picture_list.append(os.path.join(dir,file)) return picture_list class Window: button_list = [] object_list = [] pictures = get_picture(picture_path) file = pictures[0] is_show = True index = 0 image_file = '' def __init__(self): '''创建窗口和frame''' self.window = tk.Tk() self.window.title('my window') self.window.geometry('600x600') self.frame = tk.Frame(self.window) self.frame.pack() self.frame_l = tk.Frame(self.frame) self.frame_r = tk.Frame(self.frame) self.frame_l.pack(side='left') self.frame_r.pack(side='right') self.frame_ll = tk.Frame(self.frame_r) self.frame_rr = tk.Frame(self.frame_r) self.frame_ll.pack(side='left') self.frame_rr.pack(side='right') def next_picture(self): '''下一张图片''' self.index = self.pictures.index(self.file) self.index += 1 if self.index = 0: self.checkout_button() self.file = self.pictures[self.index] self.create_canvas(self.file) else: self.index = 0 tkinter.messagebox.showinfo('提示', '已经是第一张了') def show_picture(self): '''展示图片和翻页按钮''' self.file = self.pictures[0] if self.is_show: self.is_show = False self.create_canvas(self.file) button1 = tk.Button(self.frame_ll, text='上一张', width=10, height=1, command=self.pre_picture) button1.pack() button2 = tk.Button(self.frame_rr, text='下一张', width=10, height=1, command=self.next_picture) button2.pack() self.button_list.append(button1) self.button_list.append(button2) self.object_list.extend(self.button_list) else: self.is_show = True while self.object_list: o = self.object_list.pop() o.destroy() def new_button(self): '''创建展示按钮''' tk.Button(self.frame_l, text='图片展示', width=10, height=1, command=self.show_picture).pack() def create_canvas(self,file): '''用画布展示图片''' self.image_file = tk.PhotoImage(file=file) canvas = tk.Canvas(self.frame_r, height=500, width=600) canvas.create_image(1, 1, anchor='nw', image=self.image_file) canvas.pack() self.object_list.append(canvas) def run(self): '''主程序调用''' self.window.mainloop() if __name__ == '__main__': w = Window() w.new_button() w.run()