GroupBy对象可以转换成列表或字典

# groupby对象转换为列表
d = list(g1)

print(d)
1
2
3
4

d[0][0] # 'one'
1
d[0][1]
1

# groupby对象转换为字典

dic = dict(list(g1))
print(dic)
1
2
3
4

dic.keys(http://www.amjmh.com/v/) # dict_keys(['one', 'two'])
1
dic['one']
1

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