Data Element: It is the basic unit of data and is usually considered and processed as a whole in computer programs.
A data element can consist of several data items. A data item is the smallest indivisible unit of data.
Data Object: It is a collection of data elements with the same properties. is a subset of the data.
Data Structure: It is a collection of data elements that have one or more specific relationships with each other.
Tsinghua University Yan Weimin's version of data structure lecture notes PPT, everyone is welcome to download.
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