python将数组转换成csv文件

import numpy as np
import pandas as pd
from numpy.matlib import repmat
arra = np.random.randint(1,10,(1000,5))
arrb = np.square(arra)
arrc =np.minimum(arra,arrb)
print(arrc)

运行截图：

import pandas as pd
data1 = pd.Dataframe(arrc)
data1.to_csv('a.csv')
 

 然后你的python文件同级目录下就会有a.csv文件了

点击打开后如图：