python dataframe 重命名

如果你想在Python中重命名DataFrame的列名，你可以使用`rename()`方法或直接对`columns`属性进行赋值操作。下面是两种方法的示例代码:

方法1：使用`rename()`方法

import pandas as pd

data = {'A': [1, 2, 3], 'B': [4, 5, 6]}
df = pd.DataFrame(data)

df.rename(columns={'A': 'New_Name'}, inplace=True)

print(df)

输出:

   New_Name  B
0         1  4
1         2  5
2         3  6

方法2：直接赋值给`columns`属性

import pandas as pd

data = {'A': [1, 2, 3], 'B': [4, 5, 6]}
df = pd.DataFrame(data)

df.columns = ['New_Name', 'B']

print(df)

输出:

   New_Name  B
0         1  4
1         2  5
2         3  6

希望这些代码对你有帮助！<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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