mport matplotlib.pyplot as plt import numpy as np x = np.linspace(0.05, 10, 1000) # x = 0.05到10的等间距1000个点 y = np.cos(x) # y = cos(x) # ls=图线风格, lw=图线宽度, label=图像标签 plt.plot(x, y, ls="-", lw="2", label="plot figure") # 绘制线图 plt.legend() # 绘制图例 plt.show() # 显示图像
