将多个名称相同但编号不同的列复制到python/pandas中的新df中

import pandas as pd

new_df = pd.DataFrame()

# 假设有三个列名为"column1"的列，编号分别为1、2、3
for i in range(1, 4):
    column_name = "column1" + str(i)
    new_df[column_name] = original_df[column_name].copy()

import pandas as pd

# 假设原始DataFrame为original_df

new_df = pd.DataFrame()

for i in range(1, 4):
    column_name = "column1" + str(i)
    new_df[column_name] = original_df[column_name].copy()

# 输出新的DataFrame
print(new_df)