無法定義頂點

Question

我想以這種方式繪製一個三角形，但我一直在搞亂部分，我必須選擇頂點。有人可以告訴我我哪裏出錯了嗎？

from graphics import GraphicsWindow 

triangle1= [[150,50], [250,50],[200,130]] 


win = GraphicsWindow(400, 400) 
canvas = win.canvas() 
canvas.setOutline("blue") 
canvas.drawPolygon(triangle1, canvas) 
last = len(triangle1) - 1 
for i in range(last): 
    start = triangle1[i] 
    end = triangle1[i+1] 
    canvas.drawLine(start[0], start[1], end[0], end[1]) 
start =triangle1[last] 
end = triangle1[0] 
canvas.drawLine(start[0], start[1], end[0], end[1]) 
win.wait() 

Answer 1

如果使用EzGraphics，嘗試：

triangle1 = [150, 50, 250, 50, 200, 130] 
canvas.drawPolygon(triangle1) 

或

triangle1 = [(150, 50), (250, 50), (200, 130)] 
canvas.drawPolygon(triangle1)