Web Reference: DataFrame 既有行索引也有列索引，它可以被看做由 Series 组成的字典（共同用一个索引）。 DataFrame 提供了各种功能来进行数据访问、筛选、分割、合并、重塑、聚合以及转换等操作。 For DataFrame or 2d ndarray input, the default of None behaves like copy=False. If data is a dict containing one or more Series (possibly of different dtypes), copy=False will ensure that these inputs are not copied. DataFrame 的每一行数据都可以看成一个 Series 结构，只不过，DataFrame 为这些行中每个数据值增加了一个列标签。 因此 DataFrame 其实是从 Series 的基础上演变而来。 在数据分析任务中 DataFrame 的应用非常广泛，因为它描述数据的更为清晰、直观。
YouTube Excerpt: #Dataframe 1:Creating an empty DataFrame
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Dataframe 1 Creating An Empty Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $40M - $54M
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Last Updated: April 15, 2026
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