Tkinter pyimage不存在----image “pyimage10“ doesn‘t exist

    技术2022-07-16  79

    Tkinter pyimage不存在----image “pyimage10” doesn’t exist

    运行环境:Spyder(python3.7)或者jupyter notebook 运行例程:

    import tkinter as tk window = tk.Tk() window.title('my window') window.geometry('200x200') canvas = tk.Canvas(window, bg='blue', height=100, width=200) image_file = tk.PhotoImage(file='ins.gif') image = canvas.create_image(10, 10, anchor='nw', image=image_file) x0, y0, x1, y1= 50, 50, 80, 80 line = canvas.create_line(x0, y0, x1, y1) oval = canvas.create_oval(x0, y0, x1, y1, fill='red') arc = canvas.create_arc(x0+30, y0+30, x1+30, y1+30, start=0, extent=180) rect = canvas.create_rectangle(100, 30, 100+20, 30+20) canvas.pack() def moveit(): canvas.move(rect, 0, 2) b = tk.Button(window, text='move', command=moveit).pack() window.mainloop()

    预期输出: 实际输出:image “pyimage10” doesn’t exist

    出于某种原因,在调试器中运行时,如果任何先前的执行抛出错误,会得到“pyimage不存在”错误。 但是,如果我重新启动调试器(或者以前没有执行的脚本抛出错误),那么程序运行正常。

    所以解决办法:重启Spyder或者jupyter notebook。

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