如何从csv文件中获取在新文件中写入自定义表格

import csv
import pandas as pd

with open('input.csv', 'r') as file:
    reader = csv.reader(file)
    data = list(reader)

df = pd.DataFrame(data)  # 创建DataFrame对象
df.columns = ['列1', '列2', '列3']  # 自定义表格的列名

df.to_csv('output.csv', index=False)  # 将数据写入新文件output.csv，不包含索引列

import csv
import pandas as pd

with open('input.csv', 'r') as file:
    reader = csv.reader(file)
    data = list(reader)

df = pd.DataFrame(data)
df.columns = ['列1', '列2', '列3']

df.to_csv('output.csv', index=False)