创建一个pandas

Question

1 具有索引['a','b','c']和值[1,2,3]
2 prc_date={
1000:'2022-10-01'
1001:'2022-10-02'
1002:'2002-10-03'
}
以日期为索引，价格为值
3 字典dic={i:i+1for i in range(10000)}创建一个pandas series，指数从0到9999所有值都等于1
（不适用二级字典）

Answer 1

import pandas as pd

data_frame = pd.DataFrame(data=[1, 2, 3], index=['a', 'b', 'c'])
print(data_frame)
prc_date = {
    1000: '2022-10-01',
    1001: '2022-10-02',
    1002: '2002-10-03'
}

data_frame = pd.DataFrame(data=[i[0] for i in prc_date.items()], index=[i[1] for i in prc_date.items()])
print(data_frame)

dic = {i: i + 1 for i in range(10000)}
data_frame = pd.Series(dic)
data_frame = data_frame.map(lambda x: 1)
print(data_frame)