摘要：
学习过程中跟着敲的代码：import matplotlib.pyplot as pltfrom matplotlib.image import imreadplt.rcParams["font.sans-serif"] = ['Arial Unicode MS'] # 设置字体# plt.rcPar 阅读全文
摘要：
import numpy as nparr = np.array([1, 2, 3])print(arr.shape)print(arr)arr = np.arange(10)print(arr.shape)print(arr)# (开始，截止，步长）# [开始，截止）范围内步长为间隔的更新arr 阅读全文