基于索引在pandas中创建多个列

import pandas as pd

# 创建一个空的DataFrame
df = pd.DataFrame()

# 创建多个列
df['column1'] = [1, 2, 3, 4, 5]
df['column2'] = ['a', 'b', 'c', 'd', 'e']
df['column3'] = pd.Series([True, False, True, False, True])
df['column4'] = 10

# 打印DataFrame
print(df)

   column1 column2  column3  column4
0        1       a     True       10
1        2       b    False       10
2        3       c     True       10
3        4       d    False       10
4        5       e     True       10