matplotlib

坐标轴中置

import matplotlib.pyplot as plt fig, ax = plt.subplots() ax.plot([1, 2, 3], [1, 2, 3]) # 移动坐标轴到中心 ax.spines['left'].set_position('center') ax.spines['bottom'].set_position('center') ax.spines['right'].set_visible(False) ax.spines['top'].set_visible(False) ax.xaxis.set_ticks_position('bottom') ax.yaxis.set_ticks_position('left') plt.show()

grid

ax.grid(True)

aspect

ax.set_aspect(aspect=1)