101 LINQ Samples: Miscellaneous Operators

LINQ Concat与SequenceEqual示例

最新推荐文章于 2021-03-29 09:36:21 发布

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最新推荐文章于 2021-03-29 09:36:21 发布

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原文链接：http://www.cnblogs.com/zjz008/archive/2011/03/13/1982931.html

本文提供了使用LINQ的Concat方法将两个数组或集合连接成一个序列的示例，以及使用SequenceEqual方法检查两个序列是否完全相同的示例。通过具体的代码演示了如何操作整数数组和字符串数组。

Concat - 1

This sample uses Concat to create one sequence that contains each array's values, one after the other.

public void Linq94(){    int[] numbersA = { 0, 2, 4, 5, 6, 8, 9 };    int[] numbersB = { 1, 3, 5, 7, 8 };     var allNumbers = numbersA.Concat(numbersB);     Console.WriteLine("All numbers from both arrays:");    foreach (var n in allNumbers)    {        Console.WriteLine(n);    }}

Result

All numbers from both arrays: 0 2 4 5 6 8 9 1 3 5 7 8

Concat - 2

This sample uses Concat to create one sequence that contains the names of all customers and products, including any duplicates.

public void Linq95(){    List<Customer> customers = GetCustomerList();    List<Product> products = GetProductList();     var customerNames =        from c in customers        select c.CompanyName;    var productNames =        from p in products        select p.ProductName;     var allNames = customerNames.Concat(productNames);     Console.WriteLine("Customer and product names:");    foreach (var n in allNames)    {        Console.WriteLine(n);    }}

Result

Customer and product names: Alfreds Futterkiste Ana Trujillo Emparedados y helados Antonio Moreno TaquerÃa Around the Horn Berglunds snabbkÃ¶p Blauer See Delikatessen Blondel pÃ¨re et fils BÃ³lido Comidas preparadas Bon app' Bottom-Dollar Markets B's Beverages Cactus Comidas para llevar Centro comercial Moctezuma Chop-suey Chinese ComÃ©rcio Mineiro Consolidated Holdings Drachenblut Delikatessen Du monde entier Eastern Connection Ernst Handel Familia Arquibaldo FISSA Fabrica Inter. Salchichas S.A. Folies gourmandes Folk och fÃ¤ HB Frankenversand France restauration Franchi S.p.A. Furia Bacalhau e Frutos do Mar GalerÃa del gastrÃ³nomo Godos Cocina TÃpica Gourmet Lanchonetes Great Lakes Food Market GROSELLA-Restaurante Hanari Carnes HILARIÃ“N-Abastos Hungry Coyote Import Store Hungry Owl All-Night Grocers Island Trading KÃ¶niglich Essen La corne d'abondance La maison d'Asie Laughing Bacchus Wine Cellars Lazy K Kountry Store Lehmanns Marktstand Let's Stop N Shop LILA-Supermercado LINO-Delicateses Lonesome Pine Restaurant Magazzini Alimentari Riuniti Maison Dewey MÃ¨re Paillarde Morgenstern Gesundkost North/South OcÃ©ano AtlÃ¡ntico Ltda. Old World Delicatessen Ottilies KÃ¤seladen Paris spÃ©cialitÃ©s Pericles Comidas clÃ¡sicas Piccolo und mehr Princesa Isabel Vinhos Que DelÃcia Queen Cozinha QUICK-Stop Rancho grande Rattlesnake Canyon Grocery Reggiani Caseifici Ricardo Adocicados Richter Supermarkt Romero y tomillo SantÃ© Gourmet Save-a-lot Markets Seven Seas Imports Simons bistro SpÃ©cialitÃ©s du monde Split Rail Beer & Ale SuprÃªmes dÃ©lices The Big Cheese The Cracker Box Toms SpezialitÃ¤ten Tortuga Restaurante TradiÃ§Ã£o Hipermercados Trail's Head Gourmet Provisioners Vaffeljernet Victuailles en stock Vins et alcools Chevalier Die Wandernde Kuh Wartian Herkku Wellington Importadora White Clover Markets Wilman Kala Wolski Zajazd Chai Chang Aniseed Syrup Chef Anton's Cajun Seasoning Chef Anton's Gumbo Mix Grandma's Boysenberry Spread Uncle Bob's Organic Dried Pears Northwoods Cranberry Sauce Mishi Kobe Niku Ikura Queso Cabrales Queso Manchego La Pastora Konbu Tofu Genen Shouyu Pavlova Alice Mutton Carnarvon Tigers Teatime Chocolate Biscuits Sir Rodney's Marmalade Sir Rodney's Scones Gustaf's KnÃ¤ckebrÃ¶d TunnbrÃ¶d GuaranÃ¡ FantÃ¡stica NuNuCa NuÃŸ-Nougat-Creme GumbÃ¤r GummibÃ¤rchen Schoggi Schokolade RÃ¶ssle Sauerkraut ThÃ¼ringer Rostbratwurst Nord-Ost Matjeshering Gorgonzola Telino Mascarpone Fabioli Geitost Sasquatch Ale Steeleye Stout Inlagd Sill Gravad lax CÃ´te de Blaye Chartreuse verte Boston Crab Meat Jack's New England Clam Chowder Singaporean Hokkien Fried Mee Ipoh Coffee Gula Malacca Rogede sild Spegesild Zaanse koeken Chocolade Maxilaku Valkoinen suklaa Manjimup Dried Apples Filo Mix Perth Pasties TourtiÃ¨re PÃ¢tÃ© chinois Gnocchi di nonna Alice Ravioli Angelo Escargots de Bourgogne Raclette Courdavault Camembert Pierrot Sirop d'Ã©rable Tarte au sucre Vegie-spread Wimmers gute SemmelknÃ¶del Louisiana Fiery Hot Pepper Sauce Louisiana Hot Spiced Okra Laughing Lumberjack Lager Scottish Longbreads Gudbrandsdalsost Outback Lager Flotemysost Mozzarella di Giovanni RÃ¶d Kaviar Longlife Tofu RhÃ¶nbrÃ¤u Klosterbier LakkalikÃ¶Ã¶ri Original Frankfurter grÃ¼ne SoÃŸe

EqualAll - 1

This sample uses EqualAll to see if two sequences match on all elements in the same order.

public void Linq96(){    var wordsA = new string[] { "cherry", "apple", "blueberry" };    var wordsB = new string[] { "cherry", "apple", "blueberry" };     bool match = wordsA.SequenceEqual(wordsB);     Console.WriteLine("The sequences match: {0}", match);}

Result

The sequences match: True

EqualAll - 2

This sample uses EqualAll to see if two sequences match on all elements in the same order.

public void Linq97(){    var wordsA = new string[] { "cherry", "apple", "blueberry" };    var wordsB = new string[] { "apple", "blueberry", "cherry" };     bool match = wordsA.SequenceEqual(wordsB);     Console.WriteLine("The sequences match: {0}", match);}