如何清除pandas中与所有行合并的名为"Unnamed“的行？

import pandas as pd

data = pd.read_csv('data.csv')
df = pd.DataFrame(data)

unnamed_rows = df[df.iloc[:, 0].str.contains('Unnamed')]

unnamed_indexes = unnamed_rows.index

df = df.drop(unnamed_indexes)

import pandas as pd

data = pd.read_csv('data.csv')
df = pd.DataFrame(data)

unnamed_rows = df[df.iloc[:, 0].str.contains('Unnamed')]
unnamed_indexes = unnamed_rows.index
df = df.drop(unnamed_indexes)