# -*- coding: utf-8 -*- """ __author__= 'Du' __creation_time__= '2018/1/4 17:30' """   import numpy as np import matplotlib.pyplot as plt   # 該行用于設(shè)置chart 的樣式，可以注掉 # plt.style.use("mystyle")  fig = plt.figure(figsize=(8,8)) ax = fig.add_subplot(111) ax.spines['left'].set_color('none') ax.spines['bottom'].set_color('none') ax.spines['right'].set_color('none') ax.spines['top'].set_color('none') ax.set_xticks([]) ax.set_yticks([])  # 實(shí)現(xiàn)功能 theta = np.arange(0, 2 * np.pi + 0.1,2 * np.pi / 1000) x = np.cos(theta) y = np.sin(theta)  v = np.linspace(0, 10, 100) v.shape = (100, 1)  x = v * x y = v * y  plt.plot(x, y, color='pink') # plt.savefig('ball1.jpg') plt.show()