elementary data type 中文意思是什麼

elementary data type 解釋
基本數據類型
  • elementary : adj. 1. 初步的,初等的;基本的,根本的,本質的。2. 自然力的。3. 單元的,單體的。4. 【化學】元素的。adv. -rily ,-riness n.
  • data : n 1 資料,材料〈此詞系 datum 的復數。但 datum 罕用,一般即以 data 作為集合詞,在口語中往往用單數...
  • type : n 1 型,類型,(工業產品的)品種;風格,型式。2 典型,榜樣,樣本,樣板,模範,範本;典型人物;具...
  1. As far as model is concerned, the forth generation software should be characterized with spatial entity - oriented. the paper established the geographic spatial model based on the thinking of object - oriented ; studied the structure of the model " s elementary unit - - geographic entity ; brought forward the concept of geometric data type which characterize entity ' s spatial feature in the structure ; defined five kinds of geometric data types such as point, arc, area, composite arc, composite area ; and formalized their collective operation using hypergraph. at the end of this paper writer studied preliminarily the method of entity query and analysis based on the model

    本論文從面向對象的基本思想出發,建立了面向對象的地理空間模型;研究了地理空間模型中的基本單位? ?地理實體的結構,針對實體結構中用來表徵實體空間特性的組成部分? ?幾何對象,提出了其取值范圍,即幾何數據類型的概念;對點、弧、面、復合弧和組合面五種幾何數據類型進行了定義;並使用超圖工具對幾何數據類型的集合操作進行了形式化描述;對基於面向對象的地理空間模型的實體查詢和分析方法也做了初步研究。
  2. When you declare an elementary data type, it is not safe to assume that its memory consumption is the same as its nominal storage allocation

    在聲明一個基本數據類型時,假定該數據類型的內存消耗等於其名義存儲分配是不安全的。
  3. Define and use a structure data type when you need to combine various data types into a single unit, or when none of the elementary data types serve your needs

    當您需要將不同的數據類型組合為一個單元時,或者當所有基本數據類型都無法滿足您的需求時,可以定義和使用結構數據類型。
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