pandas如何连接两列

import pandas as pd

# 创建示例数据
data = {'Column1': [1, 2, 3, 4, 5],
        'Column2': ['A', 'B', 'C', 'D', 'E']}
df = pd.DataFrame(data)

# 连接两列
df['Combined'] = df['Column1'].astype(str) + df['Column2']

# 打印结果
print(df)

   Column1 Column2 Combined
0        1       A       1A
1        2       B       2B
2        3       C       3C
3        4       D       4D
4        5       E       5E