从多个数据帧熊猫的选定行创建新的数据帧

import pandas as pd

df1 = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
df2 = pd.DataFrame({'A': [7, 8, 9], 'B': [10, 11, 12]})
df3 = pd.DataFrame({'A': [13, 14, 15], 'B': [16, 17, 18]})

new_df = pd.concat([df1[1:2], df2[0:2], df3[2:3]])

print(new_df)

import pandas as pd

df1 = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]})
df2 = pd.DataFrame({'A': [7, 8, 9], 'B': [10, 11, 12]})
df3 = pd.DataFrame({'A': [13, 14, 15], 'B': [16, 17, 18]})

new_df = pd.concat([df1[1:2], df2[0:2], df3[2:3]])

print(new_df)