DataFrame 重命名列名rename

import pandas as pd

# 创建示例 DataFrame
data = {
    'OldName1': [1, 2, 3],
    'OldName2': [4, 5, 6]
}
df = pd.DataFrame(data)

# 重命名列名
new_column_names = {
    'OldName1': 'NewName1',
    'OldName2': 'NewName2'
}
df.rename(columns=new_column_names, inplace=True)

print("DataFrame with renamed column names:")
print(df)