我正在嘗試使用 matplotlib 制作 20x20 的可視網格。但是我無法調整網格的大小以適應每個框的大小。這是我的代碼：import matplotlib as mplfrom matplotlib import pyplotimport numpy as npgrid = [[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1],        [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],        [1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0],    ]print (grid)zvals = grid# make a color map of fixed colorscmap = mpl.colors.ListedColormap(['white','black'])bounds=[-2,-1,1,2]norm = mpl.colors.BoundaryNorm(bounds, cmap.N)# tell imshow about color map so that only set colors are usedimg = pyplot.imshow(zvals,interpolation='nearest',                    cmap = cmap,norm=norm)# make a color barpyplot.colorbar(img,cmap=cmap,                norm=norm,boundaries=bounds,ticks=[0,1])pyplot.grid(which= 'both')pyplot.show()我希望網格是黑盒子的大小。