我通过生成一组随机数并将它们转换为int类型来创建数组。但是，我不认为我下面的方法是有效的。有没有最好的方法来改变数组中的数据类型？# standard normal distributed random numbers

c=random.randn(5,5)

c

array([[-0.37644781, -0.81347483, -0.36895952, -2.68702544, -0.96780752],

[ 0.05293328, 1.65260753, 0.55586611, -0.5786392 , 0.50865003],

[ 1.25508358, 0.51783276, 2.36435212, -0.23484705, -1.20999296],

[ 2.07552172, 0.65506648, 0.10231436, -0.26046045, 0.40148111],

[ 0.24864496, -1.8852587 , -2.51091886, 1.01106003, 1.53118353]])

d=array([[-0.37644781, -0.81347483, -0.36895952, -2.68702544, -0.96780752],

[ 0.05293328, 1.65260753, 0.55586611, -0.5786392 , 0.50865003],

[ 1.25508358, 0.51783276, 2.36435212, -0.23484705, -1.20999296],

[ 2.07552172, 0.65506648, 0.10231436, -0.26046045, 0.40148111],

[ 0.24864496, -1.8852587 , -2.51091886, 1.01106003, 1.53118353]],dtype=int)

d

array([[ 0, 0, 0, -2, 0],

[ 0, 1, 0, 0, 0],

[ 1, 0, 2, 0, -1],

[ 2, 0, 0, 0, 0],

[ 0, -1, -2, 1, 1]])