使用pandas两列转换成字典的健和值

{‘Mary':26,‘Sellina':28,‘Zaca':27}

import pandas as pd
import pandas as pd
a = ['Mary','Sellina','Zaca']
b = [26,28,27]
data = {'name':a,'age':b}
df = pd.DataFrame(data)
print(df)

df1 = df.set_index(['name'])['age'].to_dict()
print(df1)

df2 = df.to_dict(orient = 'list')

import pandas as pd 
df = pd.DataFrame({'A': ['a', 'b', 'c'],
                   'B': [2, 7, 1],
                   'C': [100, 87, 96]})
 
# 形成以A为key,B为value的dict
dc = df.set_index("A")["B"].to_dict()
print(dc)

dc = df.groupby('mykey')['mydata'].apply(list).to_dict()  # 对于同一个key对应多个value，则把同一key的value构成一个list