Canvas组件周围边框去除

Canvas组件在铺满父组件时，发现周围有白色边框，设置boder、borderwidth都无效。查了一番资料后发现设置 highlightthickness=0 即可移除白框。

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from tkinter import *

app = Tk()
app.geometry("800x600")

cvs = Canvas(app, bg="#2B2B2B", highlightthickness=0)
cvs.configure(highlightthickness=0)
cvs.place(x=0, y=0, width=800, height=600)

app.mainloop()