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Pandas DataFrame get() 方法

❮ DataFrame 参考


示例

从 DataFrame 中提取 "firstname" 列

import pandas as pd

data = {
  "firstname": ["Sally", "Mary", "John"],
  "age": [50, 40, 30],
  "qualified": [True, False, False]
}

df = pd.DataFrame(data)
print(df.get("firstname"))
亲自尝试 »

定义和用法

The get() 方法返回 DataFrame 中指定的列。

如果只指定一列,则返回值为 Pandas Series 对象。

要指定多列,请在数组中指定这些列。结果将是一个新的 DataFrame 对象。


语法

dataframe.get(key)

参数

参数 描述
key  可选。表示要返回的列的字符串或对象


返回值

如果只返回一列:一个 Pandas Series 对象。

如果返回多列:一个 Pandas DataFrame 对象。


❮ DataFrame 参考

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