tkiner-canvas显示图片

方式1 tkiner自带的打开图片的方式，只能打开gif图片

import tkinter as tk
window = tk.Tk()
window.title('test')#设置窗口名
window.geometry('200x200')#设置窗口大小
canvas = tk.Canvas(window,height=400,width=500)
image_file = tk.PhotoImage(file = r'D:\xs.gif')
image = canvas.create_image(100,100,anchor='center',image=image_file)
canvas.pack()
window.mainloop()

如图

方式2 用PIL，可打开jpg,png,gif 类型的图片，其他的不知道可不可以，没有用到过~~~

import tkinter as tk
from PIL import Image,ImageTk
window = tk.Tk()
window.title('test')#设置窗口名
window.geometry('300x200')#设置窗口大小
canvas = tk.Canvas(window,height=400,width=500)
img = Image.open(r'D:\u0.jpg')
image_file = ImageTk.PhotoImage(img)  #注：如果显示图片这个功能定义在一个方法里，image_file 一定要申明为全局变量，窗口才会显示图片
image = canvas.create_image(100,50,anchor='center',image=image_file)
canvas.pack()
window.mainloop()

如图

3.图片过大，canvas添加滚动条

from tkinter import *
from PIL import Image,ImageTk

class CW:
    def __init__(self):
        self.window = Tk()
        self.window.title('test')#设置窗口名
        self.window.geometry('200x200')#设置窗口大小
        self.frame = Frame(self.window)
        self.frame.pack()
        self.canvas = Canvas(self.frame,height=400,width=500)
        self.scoller()
        self.show()

    def show(self):
        global image_file
        img = Image.open(r'D:\u0.jpg')
        image_file = ImageTk.PhotoImage(img)
        self.canvas.create_image(0,0,anchor='center',image=image_file)
        self.canvas.pack()

    def scoller(self):
        yscor = Scrollbar(self.frame, orient=VERTICAL, cursor='draft_small')  #垂直方向滚动条
        yscor.pack(side='right', fill=Y)
        yscor.config(command=self.canvas.yview)
        xscor = Scrollbar(self.frame, orient=HORIZONTAL, cursor='draft_small')#水平方向滚动条
        xscor.pack(side='bottom', fill=X)
        xscor.config(command=self.canvas.xview)
        self.canvas.config(yscrollcommand=yscor.set,xscrollcommand=xscor.set)  # 增加这句滚动条才有滚动
        self.frame.bind("<Configure>",self.onFrameConfigure)  # 增加了这句后滚动条功能才正常

    def onFrameConfigure(self,event):
        self.canvas.configure(scrollregion=self.canvas.bbox("all"))

    def __call__(self):
        self.window.mainloop()
        
if __name__ == '__main__':
    CW()()

如图