数组和二维数组"/>
python一维数组和二维数组
import numpy as np
import pandas as pd
numpy:一维数组
a=np.array([1,2,3,4,5])
print(a[0])#查询print(a[1:3])#切片for i in a:print(i)#循环访问print(a.dtype)#数据类型c=a+1
print(c)#向量化运算
1
[2 3]
1
2
3
4
5
int32
[2 3 4 5 6]
pandas:一维数组
barca=pd.Series([11,10,9,],index=['neymar','messi','suarez'])
print(barca)
neymar 11
messi
更多推荐
python一维数组和二维数组
发布评论