python tk 图片自适应控件大小

部分代码如下

from PIL import Image, ImageTkself.img = Image.open("3.png")self.img = self.img.resize((550, 160), Image.ANTIALIAS)self.img = ImageTk.PhotoImage(self.img)self.imgLabel = tk.Label(root, image=self.img)self.imgLabel.place(relx=0.113, rely=0.16, relheight=0.3555, relwidth=0.766)