python(NumPy数据类型）

import numpy as np

print("***********#定义一维数组***************")
#定义一维数组
a = np.array([[1,2,3,4]]) #或者a = np.array([1,2,3,4])
print(a)

print("***********定义二维数组***************")
#定义二维数组
b = np.array([[1,2,3],[4,5,6]])
print(b)

print("*********定义列表*****************")
#定义列表
k = np.array([["姓名","科目一","科目二","科目三"],
              ["张三","98","78","87"],
              ["李四","99","79","88"],
              ["王五","97","77","86"],
              ])
print(k)

print("**********#第一行****************")
#第一行
print(k[0])

print("************#第一行第二个**************")
#第一行第二个
print(k[0][1])

print("************表格数量**************")
print(k.size)