如何从python中的dataframe行中提取特定长度的范围？

import pandas as pd

data = {'Name': ['John', 'Emma', 'Mike', 'Sophia', 'David'],
        'Age': [25, 28, 32, 29, 35],
        'City': ['New York', 'London', 'Paris', 'Tokyo', 'Sydney']}
df = pd.DataFrame(data)

start_index = 1  # 起始索引
end_index = 3  # 结束索引（不包含）
subset = df[start_index:end_index]

print(subset)

   Name  Age    City
1  Emma   28  London
2  Mike   32   Paris

subset = df.loc[start_index:end_index]

subset = df.loc[:, 'Name':'Age']