?tuple

tuple發(fā)音

英：[t?pl]　　美：[t?pl]

英：　　美：

tuple中文意思翻譯

n. 元組；數組；重數

tuple常見(jiàn)例句

1 、tuple length───元組長(cháng)度

2 、bits in a tuple and 2's are mapping.───在一個(gè)元組和2年代的一點(diǎn)點(diǎn)正在映射。

3 、The member of an attribute hierarchy in a tuple is also affected by relationships that are defined between attributes within a dimension.───元組中屬性層次結構的成員還受維度中定義的屬性之間的關(guān)系影響。

4 、The for statement is used to iterate over the elements of a sequence (such as a string, tuple or list) or other iterable object───for語(yǔ)句用于迭代有序類(lèi)型或其它可迭代對象的元素(像串,元組或列表)

5 、Listed in the tuple should be two or more other validity classes; as with───列在元組中的應該是兩個(gè)或更多其它有效性類(lèi);與

6 、Drillthrough is not supported for cell sets that have more than one tuple───對于具有多個(gè)元組的單元集，鉆取不受支持

7 、However, the cell must be aggregated with the Sum aggregate function and must not include a calculated member in the tuple that is used to identify the cell.───但是,該單元必須用Sum聚合函數進(jìn)行聚合,并且在用于標識該單元的元組中不得包含計算成員。

8 、Tuple drilldown is an extension of OLE DB, and it returns a set of tuples instead of members.───對元組的深化是一種OLE DB擴展,這種深化將返回元組集而非成員集。

9 、Tuple ID propagation───ID傳播

10 、*Horizontal is the best in the case that - More selections than projections and joins, and performs more tuple modifications or tuple deletions than tuple insertions.───從一個(gè)關(guān)系中選擇一個(gè)元組：查找索引表，返回元組的邏輯地址；將邏輯地址轉換為物理地址；讀出元組中的每個(gè)屬性。

11 、pre]group() can be passed multiple group numbers at atime, in which case it will return a tuple containing the correspondingvalues for those groups.───可以一次輸入多個(gè)組號，在這種情況下它將返回一個(gè)包含那些組所對應值的元組。

12 、The second element of the tuple, called the Section, is a user-defined string which names the general category of the Access Object.───元組的第二個(gè)元素叫節，它是由用戶(hù)定義的命名權限對象通用類(lèi)的字符串。

13 、A single expression without a trailing comma doesn't create a tuple, but rather yields the value of that expression. (To create an empty tuple, use an empty pair of parentheses: ().───在其它情況下,它是可選的.一個(gè)沒(méi)有后綴逗號的表達式不會(huì )創(chuàng )建元組,但仍會(huì )計算該表達式的值.(可以使用一對空括號()創(chuàng )建一個(gè)空元組).

14 、4 Bytes: pointer on page to tuple───兩個(gè)整數字段,每個(gè)4字節

15 、tuple clustering───元組群集

16 、If a set expression is specified, MDX will try to evaluate the set, aggregating the result cells in every tuple along the set.───如果指定了集表達式,則MDX通過(guò)將結果單元聚合到集的每個(gè)元組中,嘗試對該集求值。

17 、two - tuple───二元語(yǔ)義

18 、tuple calculus───元組演算, 元組運算

19 、The function returns a set that consists of each tuple in the specified set where the logical expression evaluates to true.───如果邏輯表達式計算結果為true,該函數將返回由指定集中的每個(gè)元組構成的集。

20 、The Item function returns a tuple from the specified set.───Item函數返回指定集中的元組。

21 、Research and Application of Tuple Space-based Distributed Computing Environment───基于元組空間模型的分布式計算環(huán)境的研究與應用

22 、The StrToTuple function is typically used with user-defined functions to return a tuple specification from an external function back to an MDX statement.───StrToTuple函數通常與用戶(hù)定義函數一起使用,以將外部函數中的元組規范返回到MDX語(yǔ)句。

23 、tree tuple───不完全樹(shù)元組

24 、Tuple spaces───Tuple空間

25 、tuple structured data───元組結構數據

26 、tuple calculus language───元組演算語(yǔ)言

27 、TID n. (tuple identifier)───元組標識符

28 、tuple set───元組集合

29 、The tuple "(Access Object type, Section, Value)" uniquely identifies any Access Object.───它是用元組（權限對象類(lèi)型，節，值）的形式來(lái)唯一標識權限對象的。

30 、Returns the one-based rank of a tuple in a set.───以一為基返回元組在集合中的階。

31 、SQL based random algorithm to abstract tuple set───一種基于SQL的元組集隨機抽取算法

32 、tuple space search───元組空間搜索

33 、tuple space───元組空間

34 、Tuple space based grid workflow scheduling mechanism───基于元組空間的網(wǎng)格工作流調度機制

35 、When you explicitly specify a member in a tuple from more than one dimension, you must include the entire tuple in parentheses.───從多個(gè)維度顯式指定元組中的成員時(shí),必須將整個(gè)元組包含在括號中。

36 、5.A list can be changed after it is constructed (we say that it is mutable), whereas a tuple cannot be changed (immutable).───一個(gè)列表創(chuàng )建之后可以被改變（我們說(shuō)它是不定的），然而一個(gè)元組不能被改變（固定的）。

37 、In effect, the Filter function executes IIf(Logical_Expression, Set_Expression.Current, NULL) on each tuple in the set, and returns the resulting set.───實(shí)際上,Filter函數是對集中的每個(gè)元組執行IIf(Logical_Expression,Set_Expression.Current,NULL),然后返回所得到的集。

38 、- A delete does not actually remove the tuple but only sets its stop_date to current time.───+ 一個(gè)刪除動(dòng)作實(shí)際上并不刪除元組，只是把它的 stop_date 設置為當前時(shí)間。

39 、A Detection Algorithm for Rule Set Conflicts Based on Tuple Space Search───基于元組空間搜索的規則集沖突檢測算法

40 、they may be input with or without surrounding parentheses, although often parentheses are necessary anyway (if the tuple is part of a larger expression).───在輸入時(shí)可能有或沒(méi)有括號都可以，不過(guò)經(jīng)常括號都是必須的（如果元組是一個(gè)更大的表達式的一部分）。

41 、Decentralized tuple space───分散式元組空間

42 、concatenated tuple───串接元組

43 、numerical tuple───n. 數組

44 、labeled array tuple───帶標號數組多元組

45 、When defining a tuple in an MDX query or expression, you do not need to explicitly include the attribute member from every attribute hierarchy.───在MDX查詢(xún)或表達式中定義元組時(shí),不必顯式包含每個(gè)屬性層次結構中的屬性成員。

46 、Group() can be passed multiple group numbers at a time, in which case it will return a tuple containing the corresponding values for those groups.───group()可以一次輸入多個(gè)組號,在這種情況下它將返回一個(gè)包含那些組所對應值的元組。

47 、The cell specified by the tuple expression can be any valid cell in the multidimensional space (that is, the cell does not have to be a leaf cell).───元組表達式指定的單元可以是多維空間中的任意有效單元(即該單元不一定是葉單元)。

48 、The third element of the tuple is a user-defined name for the Access Object, and is called the Value. A Value cannot contain spaces (however, a Section can).───元組的第三個(gè)元素叫值,是用戶(hù)定義的權限對象名稱(chēng),值中不能包含空格(而節可以)。

49 、A sequence like this will often be written either in square brackets [1, 2, 3, 4] (called a list) or in parentheses (1, 2, 3, 4) (a tuple).───像這樣的序列常常被放在中括號里[1,2,3,4]（叫做一個(gè)列表）或者在圓括號里(1,2,3,4)（一個(gè)元組）。

50 、- :pgstattuple judges a tuple is "dead" if HeapTupleSatisfiesNow returns false.───+ :如果 HeapTupleSatisfiesNow 返回假，則 pgstattuple 判斷一個(gè)元組是“死”的。

51 、The tuple (object_id) is the key of the relation.───元組(object_id)是關(guān)系鍵。

52 、If a full set of coordinates is not specified for the tuple, the unspecified coordinates will use the default member of the hierarchy.───如果未為元組指定所有坐標,未指定的坐標將使用層次結構的默認成員。

53 、In practical applications,there is a class of relations in which the value of a tuple at an attribute is a relation.───在實(shí)際應用中有這樣一類(lèi)關(guān)系數據庫,其中數據項在某個(gè)屬性上的取值本身又是一個(gè)關(guān)系。

54 、tuple function───元組函數

55 、Packet classification algorithm in big rule database based on tuple folded vector───基于元組向量折疊的大規模規則庫包分類(lèi)算法

56 、dynamic numeric tuple───動(dòng)態(tài)數組

57 、labeled structure tuple───帶標號結構多元組

58 、Returns the one-based rank of a specified tuple in a specified set.───以一為基返回指定的元組在指定集合中的階。

59 、unique tuple───單元組

60 、dynamic tuple model───動(dòng)態(tài)元組模型

61 、n-prime tuple───n素元組

62 、An expression list containing at least one comma yields a tuple.The length of the tuple is the number of expressions in the list.The expressions are evaluated from left to right.───一個(gè)表達式表是一個(gè)包括至少一個(gè)逗號的元組,它的長(cháng)是表中表達式的個(gè)數.其中表達式從左到右按順序計算.

63 、tuple random placement───元組隨機替換

64 、tuple relational calculus───元組關(guān)系演算

65 、Teaching reform of introduction to using quantification and realization of implication in the mathematical calculations performed tuple relationship and SQL───關(guān)系演算和SQL中使用量詞和實(shí)現蘊涵的教學(xué)方法探討

66 、The third element of the tuple is a user-defined name for the Access Object, and is called the Value . A Value cannot contain spaces (however, a Section can).───元組的第三個(gè)元素叫值，是用戶(hù)定義的權限對象名稱(chēng)，值中不能包含空格（而節可以）。

67 、If one is found, a ForbiddenTags error is raised attaching the faulty value and the tuple of forbidden tags to the exception.───如果一個(gè)被發(fā)現,一個(gè)禁止標記錯誤異常將會(huì )連著(zhù)失敗值和禁止標記的元組一起被引發(fā)。

68 、* Line 10-12: sizeForString() must return a tuple with the first element being a unit and the second the value.───第10-12行：sizeForString() 必須以第一個(gè)元素是單位（unit）和第二個(gè)是值（value）返回一個(gè)元組。

69 、finite tuple───n. 有限元組

70 、Tuple as a class attribute.───元組作為類(lèi)屬性。

71 、Tuples, like strings, are immutable: it is not possible to assign to the individual items of a tuple (you can simulate much of the same effect with slicing and concatenation, though).───元組就像字符串，不可改變：不能給元組的一個(gè)獨立的元素賦值（盡管你可以通過(guò)聯(lián)接和切片來(lái)模仿）。

72 、- For a modifiable row, on update only the stop_date in the tuple being updated will be changed (to current time) and a new tuple with the modified data will be inserted.───+ 對于可修改的行，只是在更新的時(shí)候，被更新的元組中的 stop_date 會(huì )改變（為當前時(shí)間）然后會(huì )**入一個(gè)新的帶著(zhù)修改后的數據的元組。

73 、tuple variable───元組變量

74 、A tuple consists of a number of values separated by commas, for instance───一個(gè)元組由數個(gè)逗號分隔的值組成,例如

75 、The Analysis and Implementation of Tuple Space Based Agent Coordination───基于元組空間的Agent協(xié)作模型的分析與實(shí)現

76 、In the slicer axis syntax shown, Set_Expression can take either a tuple expression, which is treated as a set for the purposes of evaluating the clause, or a set expression.───在所示的切片器軸語(yǔ)法中,可以向Set_Expression傳遞元組表達式(被視為集以便對子句求值)或集表達式。

77 、tuple value───元組值

78 、n tuple───n元組n組

79 、The Filter function evaluates the specified logical expression against each tuple in the specified set.───Filter函數對指定集中的每個(gè)元組計算指定的邏輯表達式。

80 、conjunction tuple sets───關(guān)聯(lián)元組集合

Python中list，tuple，dict，set的區別和用法

1、list、tuple是有序列表；dict、set是無(wú)序列表

2、list元素可變、tuple元素不可變

3、dict和set的key值不可變，唯一性

4、set只有key沒(méi)有value

5、set的用途：去重、并集、交集等

6、list、tuple：+、*、索引、切片、檢查成員等

7、dict查詢(xún)效率高，但是消耗內存多；list、tuple查詢(xún)效率低、但是消耗內存少

Python中list，tuple，dict，set的區別和用法

字面意思就是一個(gè)集合，在Python中List中的元素用中括號[]來(lái)表示，可以這樣定義一個(gè)List:

L = [12, 'China', 19.998]

可以看到并不要求元素的類(lèi)型都是一樣的。當然也可以定義一個(gè)空的List: