Python将小于0的书数换成0的几种方式
>>> import numpy as np>>> a = np.random.randint(-5, 5, (5, 5))>>> aarray([[-4, -4, -5, 2, 1], [-1, -2, -1, 3, 3], [-1, -2, 3, -5, 3], [ 0, -3,...
