如何将pandas中的多列相互替换

import pandas as pd

# 创建一个示例DataFrame
data = {'A': [1, 2, 3, 4, 5],
        'B': [6, 7, 8, 9, 10],
        'C': [11, 12, 13, 14, 15]}
df = pd.DataFrame(data)

# 定义要替换的规则
replace_dict = {'A': {1: 100, 2: 200},
                'B': {6: 600, 7: 700},
                'C': {11: 1100, 12: 1200}}

# 使用replace()方法进行替换
df.replace(replace_dict, inplace=True)

# 打印替换后的DataFrame
print(df)

     A    B     C
0  100  600  1100
1  200  700  1200
2    3    8    13
3    4    9    14
4    5   10    15