在pandas中获取单元格值

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
value = df.at[0, 'A']
print(value)

1

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
value = df.iat[0, 1]
print(value)

4

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
value = df.loc[0, 'A']
print(value)

1

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
value = df.iloc[0, 1]
print(value)

4