draw_pattern(a_canvas, x, y, row_number, column_number, colour, size):

【有帮助请采纳】

是tkinter模块的canvas吗？

def draw_pattern(a_canvas, x, y, row_number, column_number, colour, size):
    a_canvas.create_rectangle(x,y+size*row_number,x+size*3,y+size*(row_number+1),fill=colour)
    a_canvas.create_rectangle(x+size*column_number,y,x+size*(column_number+1),y+size*3,fill=colour)
    print('Draw a %s rectangle at (%s, %s) to (%s, %s)'%(colour,x,y+size*row_number,x+size*3,y+size*(row_number+1)))
    print('Draw a %s rectangle at (%s, %s) to (%s, %s)'%(colour,x+size*column_number,y,x+size*(column_number+1),y+size*3))

【有帮助请采纳】

还有个条件吧，三行三列，不然矩形右下角坐标无法确定。根据示例来看，应该是三行三列。

from tkinter import *

root = Tk()
root.geometry('400x400')
cv = Canvas(root,bg='white',width=400,height=400)

def draw_pattern(a_canvas, x, y, row_number, column_number, colour, size):
    a = x+size*column_number
    b = y+size*row_number
    a_canvas.create_rectangle(x,b,x+3*size,y+size*(row_number+1),fill=colour,outline='')
    a_canvas.create_rectangle(a,y,x+size*(column_number+1),y+3*size,fill=colour,outline='')

draw_pattern(cv,10,20, 0, 2,'orange',50)

cv.pack()
root.mainloop()

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