如何将pandas赋值函数与个人定义的函数一起使用？

import pandas as pd

data = {'Name': ['Alice', 'Bob', 'Charlie'],
        'Age': [25, 30, 35]}
df = pd.DataFrame(data)

def add_age(df):
    df['Age'] = df['Age'] + 5
    return df

df['Age'] = df['Age'].apply(add_age)

print(df)

import pandas as pd

data = {'Name': ['Alice', 'Bob', 'Charlie'],
        'Age': [25, 30, 35]}
df = pd.DataFrame(data)

def add_age(df):
    df['Age'] = df['Age'] + 5
    return df

df['Age'] = df['Age'].apply(add_age)

print(df)