screensize

screensize是一个用于定义画布大小和背景颜色的参数。在Python中，可以使用turtle模块的screensize()函数来设置画布的大小。例如，使用tu.screensize(500, 500, bg='lightblue')可以将画布的宽度设置为500像素，高度设置为500像素，并将背景颜色设置为浅蓝色。这样设置后，画布的尺寸将大于窗口尺寸，并且可以使用tu.mainloop()函数来显示画布。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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