布尔索引
53.8 布尔索引
a[a > 5] 选出大于 5 的元素；条件数组做筛选。
筛选及格分
# ========================================
# 示例：布尔 mask
# ========================================
import numpy as np
scores = np.array([55, 90, 72, 88, 61])
pass_scores = scores[scores >= 60]
print('及格分', pass_scores)