如何在检查条件后分配pandas数据框中的项？

import pandas as pd

df = pd.DataFrame({'A': [1, 2, 3, 4, 5],
                   'B': ['a', 'b', 'c', 'd', 'e']})

condition = df['A'] > 2

df.loc[condition, 'C'] = 'X'

import pandas as pd

# 创建数据框
df = pd.DataFrame({'A': [1, 2, 3, 4, 5],
                   'B': ['a', 'b', 'c', 'd', 'e']})

# 使用条件进行筛选
condition = df['A'] > 2

# 分配数据框中符合条件的项
df.loc[condition, 'C'] = 'X'

print(df)

   A  B    C
0  1  a  NaN
1  2  b  NaN
2  3  c    X
3  4  d    X
4  5  e    X