numpy 创建布尔数组

间接

import numpy as np
all_true = np.zeros((3, 4)) == 0  # 全 True 
all_false = np.zeros((3, 4)) != 0  # 全 False

直接

import numpy as np
all_true = np.full((3, 4), True, dtype=bool) # 全 True 
all_false = np.full((3, 4), False, dtype=bool)  # 全 False 

# Also np.full_like

参考

1. https://www.it1352.com/1686226.html
2. https://www.numpy.org.cn/reference/routines/array-creation.html#ones-%E5%92%8C-zeros-%E5%A1%AB%E5%85%85%E6%96%B9%E5%BC%8F