Pro Aspnet MVC 4读书笔记(3) - Essential Language Features
Listing 4-1. The Initial Content of the Home Controller
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} }
}
Listing 4-2. The Contents of the Result View File
@model String
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Result</title>
</head>
<body>
<div>
@Model
</div>
</body>
</html>
Listing 4-3. Defining a Property
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public class Product
{
private string name; public string Name
{
get { return name; }
set { name = value; }
}
}
}
Listing 4-4. Consuming a Property
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} public ViewResult AutoProperty()
{
Product product = new Product();
product.Name = "Kayak"; string productName = product.Name; return View("Result", (object)String.Format("Product name: {0}", productName));
}
}
}
Listing 4-5. Verbose Property Definitions
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public class Product
{
private int productId;
private string name;
private string description;
private decimal price;
private string category; public int ProductId
{
get { return productId; }
set { productId = value; }
} public string Name
{
get { return name; }
set { name = value; }
} public string Description
{
get { return description; }
set { description = value; }
} public decimal Price
{
get { return price; }
set { price = value; }
} public string Category
{
get { return category; }
set { category = value; }
}
}
}
Listing 4-6. Using Automatically Implemented Properties
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public class Product
{
public int ProductId { get; set; }
public string Name { get; set; }
public string Description { get; set; }
public decimal Price { get; set; }
public string Category { get; set; }
}
}
Listing 4-7. Reverting from an Automatic to a Regular Property
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public class Product
{
private string name; public int ProductId { get; set; } public string Name
{
get {
return ProductId + name;
}
set {
name = value;
}
}
public string Description { get; set; }
public decimal Price { get; set; }
public string Category { get; set; }
}
}
Listing 4-8. Constructing and Initializing an Object with Properties
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} public ViewResult AutoProperty()
{
Product product = new Product();
product.Name = "Kayak"; string productName = product.Name; return View("Result", (object)String.Format("Product name: {0}", productName));
} public ViewResult CreateProduct()
{
Product product = new Product();
product.ProductId = ;
product.Name = "Kayak";
product.Description = "A boat for one person";
product.Price = 275M;
product.Category = "Watersports"; return View("Result", (object)String.Format("Category: {0}", product.Category));
}
}
}
Listing 4-9. Using the Object Initializer Feature
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} public ViewResult AutoProperty()
{
Product product = new Product();
product.Name = "Kayak"; string productName = product.Name; return View("Result", (object)String.Format("Product name: {0}", productName));
} public ViewResult CreateProduct()
{
Product product = new Product {
ProductId = ,
Name = "Kayak",
Description = "A boat for one person",
Price = 275M,
Category = "Waterports"
}; return View("Result", (object)String.Format("Category: {0}", product.Category));
}
}
}
Listing 4-10. Initializing Collections and Arrays
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} public ViewResult AutoProperty()
{
Product product = new Product();
product.Name = "Kayak"; string productName = product.Name; return View("Result", (object)String.Format("Product name: {0}", productName));
} public ViewResult CreateProduct()
{
Product product = new Product {
ProductId = ,
Name = "Kayak",
Description = "A boat for one person",
Price = 275M,
Category = "Waterports"
}; return View("Result", (object)String.Format("Category: {0}", product.Category));
} public ViewResult CreateCollection()
{
string[] stringArray = { "apple", "orange", "plum"};
List<int> intList = new List<int> { , , , };
Dictionary<string, int> dict = new Dictionary<string, int> {
{ "apple", },
{ "orange", },
{ "plum", }
}; return View("Result", (object)stringArray[]);
}
}
}
Listing 4-11. The ShoppingCart Class
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public class ShoppingCart
{
public List<Product> Products { get; set; }
}
}
Listing 4-12. Defining an Extension Method
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public static class MyExtensionMethods
{
public static decimal TotalPrices(this ShoppingCart cart)
{
decimal total = ; foreach (Product prod in cart.Products)
{
total += prod.Price;
} return total;
}
}
}
Listing 4-13. Applying an Extension Method
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseExtension()
{
// Create and populate ShoppingCart
ShoppingCart cart = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Price = 275M},
new Product{Name = "Lifejacket", Price = 48.95M},
new Product{Name = "Soccer ball", Price = 19.50M},
new Product{Name = "Corner flag", Price = 34.95M}
}
}; // Get the total value of the products in the cart
decimal cartTotal = cart.TotalPrices(); return View("Result", (object)String.Format("Total: {0:c}", cartTotal));
}
}
}
Listing 4-14. Implementing an Interface in the ShoppingCart Class
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public class ShoppingCart : IEnumerable<Product>
{
public List<Product> Products { get; set; } public IEnumerator<Product> GetEnumerator()
{
return Products.GetEnumerator();
} IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}
}
Listing 4-15. An Extension Method That Works on an Interface
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public static class MyExtensionMethods
{
public static decimal TotalPrices(this IEnumerable<Product> productEnum)
{
decimal total = ; foreach (Product prod in productEnum)
{
total += prod.Price;
} return total;
}
}
}
Listing 4-16. Applying an Extension Method to Different Implementations of the Same Interface
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseExtensionEnumerable()
{
IEnumerable<Product> products = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Price = 275M},
new Product{Name = "Lifejacket", Price = 48.95M},
new Product{Name = "Soccer ball", Price = 19.50M},
new Product{Name = "Corner flag", Price = 34.95M}
}
}; Product[] productArray = {
new Product{Name = "Kayak", Price = 275M},
new Product{Name = "Lifejacket", Price = 48.95M},
new Product{Name = "Soccer ball", Price = 19.50M},
new Product{Name = "Corner flag", Price = 34.95M}
}; decimal cartTotal = products.TotalPrices();
decimal arrayTotal = productArray.TotalPrices(); return View("Result",
(object)String.Format("Cart Total: {0}, Array Total: {1}",
cartTotal, arrayTotal));
}
}
}
Listing 4-17. A Filtering Extension Method
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public static class MyExtensionMethods
{
public static decimal TotalPrices(this IEnumerable<Product> productEnum)
{
decimal total = ; foreach (Product prod in productEnum)
{
total += prod.Price;
} return total;
} public static IEnumerable<Product> FilterByCategory(
this IEnumerable<Product> productEnum, string category)
{
foreach (Product prod in productEnum)
{
if (prod.Category == category)
{
yield return prod;
}
}
}
}
}
Listing 4-18. Using the Filtering Extension Method
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseFilterExtensionMethod()
{
IEnumerable<Product> products = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Category = "Watersports", Price = 275M},
new Product{Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product{Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product{Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}
}; decimal total = ; foreach (Product prod in products.FilterByCategory("Soccer"))
{
total += prod.Price;
} return View("Result", (object)String.Format("Total: {0}", total));
}
}
}
Listing 4-19. Using a Delegate in an Extension Method
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web; namespace LanguageFeatures.Models
{
public static class MyExtensionMethods
{
public static decimal TotalPrices(this IEnumerable<Product> productEnum)
{
decimal total = ; foreach (Product prod in productEnum)
{
total += prod.Price;
} return total;
} public static IEnumerable<Product> FilterByCategory(
this IEnumerable<Product> productEnum, string category)
{
foreach (Product prod in productEnum)
{
if (prod.Category == category)
{
yield return prod;
}
}
} public static IEnumerable<Product> Filter(
this IEnumerable<Product> productEnum, Func<Product, bool> selector)
{
foreach (Product prod in productEnum)
{
if (selector(prod))
{
yield return prod;
}
}
}
}
}
Listing 4-20. Using the Filtering Extension Method with a Func
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseFilterExtensionMethod()
{
IEnumerable<Product> products = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Category = "Watersports", Price = 275M},
new Product{Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product{Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product{Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}
}; Func<Product, bool> categoryFilter = delegate(Product prod)
{
return prod.Category == "Soccer";
}; decimal total = ; foreach (Product prod in products.Filter(categoryFilter))
{
total += prod.Price;
} return View("Result", (object)String.Format("Total: {0}", total));
}
}
}
Listing 4-21. Using a Lambda Expression to Replace a Delegate Definition
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseFilterExtensionMethod()
{
IEnumerable<Product> products = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Category = "Watersports", Price = 275M},
new Product{Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product{Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product{Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}
}; Func<Product, bool> categoryFilter = prod => prod.Category == "Soccer"; decimal total = ; foreach (Product prod in products.Filter(categoryFilter))
{
total += prod.Price;
} return View("Result", (object)String.Format("Total: {0}", total));
}
}
}
Listing 4-22. A Lambda Expression Without a Func
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseFilterExtensionMethod()
{
IEnumerable<Product> products = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Category = "Watersports", Price = 275M},
new Product{Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product{Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product{Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}
}; decimal total = ; foreach (Product prod in products.Filter(prod => prod.Category == "Soccer"))
{
total += prod.Price;
} return View("Result", (object)String.Format("Total: {0}", total));
}
}
}
Listing 4-23. Extending the Filtering Expressed by the Lambda Expression
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseFilterExtensionMethod()
{
IEnumerable<Product> products = new ShoppingCart
{
Products = new List<Product> {
new Product{Name = "Kayak", Category = "Watersports", Price = 275M},
new Product{Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product{Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product{Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}
}; decimal total = ; foreach (Product prod in products.Filter(
prod => prod.Category == "Soccer" || prod.Price > ))
{
total += prod.Price;
} return View("Result", (object)String.Format("Total: {0}", total));
}
}
}
Listing 4-24. Using Type Inference
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseTypeInference()
{
var myVariable = new Product { Name = "Kayak", Category = "Watersports", Price = 275M }; string name = myVariable.Name; // Legal
int price = myVariable.Price; // Compiler error return View("Result", (object)String.Format("Name: {0}, Price: {1}", name, price));
}
}
}
Listing 4-25. Creating an Anonymous Type
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult UseTypeInference()
{
var myAnonType = new { Name = "Kayak", Category = "Watersports", Price = 275M }; string name = myAnonType.Name;
decimal price = myAnonType.Price; return View("Result", (object)String.Format("Name: {0}, Price: {1}", name, price));
}
}
}
Listing 4-26. Creating an Array of Anonymously Typed Objects
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult CreateAnonArray()
{
var oddsAnonEnds = new[] {
new {Name = "MVC", Category = "Pattern"},
new {Name = "Hat", Category = "Clothing"},
new {Name = "Apple", Category = "Fruit"}
}; StringBuilder result = new StringBuilder();
foreach (var item in oddsAnonEnds)
{
result.Append(item.Name).Append(" ");
} return View("Result", (object)result.ToString());
}
}
}
Listing 4-27. Querying Without LINQ
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult FindProducts()
{
Product[] products =
{
new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}; Product[] foundProducts = new Product[]; Array.Sort(products, (item1, item2) => {
return Comparer<decimal>.Default.Compare(item1.Price, item2.Price);
}); Array.Copy(products, foundProducts, ); StringBuilder result = new StringBuilder();
foreach (Product p in foundProducts)
{
result.AppendFormat("Price: {0} ", p.Price);
} return View("Result", (object)result.ToString());
}
}
}
Listing 4-28. Using LINQ to Query Data
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult FindProducts()
{
Product[] products =
{
new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}; var foundProducts = from match in products
orderby match.Price descending
select new {
match.Name,
match.Price
}; int count = ; StringBuilder result = new StringBuilder();
foreach (var p in foundProducts)
{
result.AppendFormat("Price: {0} ", p.Price);
if (++count == )
{
break;
}
} return View("Result", (object)result.ToString());
}
}
}
Listing 4-29. Using LINQ Dot Notation
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult FindProducts()
{
Product[] products =
{
new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}; var foundProducts = products.OrderByDescending(e => e.Price)
.Take()
.Select(e => new {
e.Name,
e.Price
}); int count = ; StringBuilder result = new StringBuilder();
foreach (var p in foundProducts)
{
result.AppendFormat("Price: {0} ", p.Price);
if (++count == )
{
break;
}
} return View("Result", (object)result.ToString());
}
}
}
Listing 4-30. Using Deferred LINQ Extension Methods in a Query
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult FindProducts()
{
Product[] products =
{
new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}; var foundProducts = products.OrderByDescending(e => e.Price)
.Take()
.Select(e => new {
e.Name,
e.Price
}); products[] = new Product { Name = "Stadium", Price = 79600M }; StringBuilder result = new StringBuilder();
foreach (var p in foundProducts)
{
result.AppendFormat("Price: {0} ", p.Price);
} return View("Result", (object)result.ToString());
}
}
}
Listing 4-31. An Immediately Executed LINQ Query
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using LanguageFeatures.Models; namespace LanguageFeatures.Controllers
{
public class HomeController : Controller
{
public string Index()
{
return "Navigate to a URL to show an example";
} // Other action methods omitted for brevity public ViewResult SumProducts()
{
Product[] products =
{
new Product {Name = "Kayak", Category = "Watersports", Price = 275M},
new Product {Name = "Lifejacket", Category = "Watersports", Price = 48.95M},
new Product {Name = "Soccer ball", Category = "Soccer", Price = 19.50M},
new Product {Name = "Corner flag", Category = "Soccer", Price = 34.95M}
}; var results = products.Sum(e => e.Price); products[] = new Product { Name = "Stadium", Price = 79600M }; return View("Result", (object)String.Format("Sum: {0:c}", results));
}
}
}
Listing 4-32. A Simple Asynchronous Method
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net.Http;
using System.Threading.Tasks; namespace LanguageFeatures.Models
{
public class MyAsyncMethods
{
public static Task<long?> GetPageLength()
{
HttpClient client = new HttpClient();
var httpTask = client.GetAsync("http://apress.com"); // We could do other things here while we are waiting
// for the HTTP request to complete return httpTask.ContinueWith((Task<HttpResponseMessage> antecedent) => {
return antecedent.Result.Content.Headers.ContentLength;
});
}
}
}
Listing 4-33. Using the async and await Keywords
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Net.Http;
using System.Threading.Tasks; namespace LanguageFeatures.Models
{
public class MyAsyncMethods
{
public async static Task<long?> GetPageLength()
{
HttpClient client = new HttpClient();
var httpMessage = await client.GetAsync("http://apress.com"); // We could do other things here while we are waiting
// for the HTTP request to complete return httpMessage.Content.Headers.ContentLength;
}
}
}
Pro Aspnet MVC 4读书笔记(3) - Essential Language Features的更多相关文章
- Pro Aspnet MVC 4读书笔记(5) - Essential Tools for MVC
Listing 6-1. The Product Model Class using System; using System.Collections.Generic; using System.Li ...
- Pro Aspnet MVC 4读书笔记(1) - Your First MVC Application
Listing 2-1. The default contents of the HomeController class using System; using System.Collections ...
- Pro Aspnet MVC 4读书笔记(4) - Working with Razor
Listing 5-1. Creating a Simple Domain Model Class using System; using System.Collections.Generic; us ...
- Pro Aspnet MVC 4读书笔记(2) - The MVC Pattern
Listing 3-1. The C# Auction Domain Model using System; using System.Collections.Generic; using Syste ...
- 【Tools】Pro Git 一二章读书笔记
记得知乎以前有个问题说:如果用一天的时间学习一门技能,选什么好?里面有个说学会Git是个很不错选择,今天就抽时间感受下Git的魅力吧. Pro Git (Scott Chacon) 读书笔记: ...
- [Git00] Pro Git 一二章读书笔记
记得知乎以前有个问题说:如果用一天的时间学习一门技能,选什么好?里面有个说学会Git是个很不错选择,今天就抽时间感受下Git的魅力吧. Pro Git (Scott Chacon) 读书笔记: ...
- 《Pro Android Graphics》读书笔记之第四节
Android Procedural Animation: : XML, Concepts and Optimization Procedural Animation Concepts: Tweens ...
- 《Pro Android Graphics》读书笔记之第三节
Android Frame Animation: XML, Concepts and Optimization Frame Animation Concepts: Cels, Framerate, a ...
- 《Pro Android Graphics》读书笔记之第六节
Android UI Layouts: Graphics Design Using the ViewGroup Class Android ViewGroup Superclass: A Founda ...
随机推荐
- IAR FOR ARM 各版本号，须要的大家能够收藏了
首先感谢大家的支持与关注,如今应该又一次编辑这篇文章了,这篇文章是非常久曾经不知在什么地方Copy过来的, 非常多问题不知怎么解决,如今我用的是KEIL for arm. 用过Keil和IAR,个人感 ...
- Path相关评论的方法(一)
以前的主要是关于Canvas的translate(平移) .scale(缩放) .rotate(旋转) .skew(错切).接下来几篇主要讲下android里的Path(封装了贝塞尔曲线)& ...
- 【Android接口实现】ActionBar利用整理的一些细节
转载请注明出处:http://blog.csdn.net/zhaokaiqiang1992 关于ActionBar的使用,非常多大神早就已经写了非常好的文章进行了介绍,所以ActionBar的基本使用 ...
- 【原创】leetCodeOj --- Repeated DNA Sequences 解题报告
原题地址: https://oj.leetcode.com/problems/repeated-dna-sequences/ 题目内容: All DNA is composed of a series ...
- The practice program of C on point
//字符反向排列 //vision 1.2 #include<stdio.h> void reverse_string( char *str ) { char *string;//第一个字 ...
- CentOS6.2安装memcache
一,安装libevent # cd /tmp # wget http://www.monkey.org/~provos/libevent-1.3.tar.gz # tar -zxvf libevent ...
- laydate天蓝色的皮肤
要使用该网站日期控件.就到网上找laydate,但laydate无天蓝色的肌肤,其他皮肤不能进行集成和现场,对自己做了一个天蓝色的肌肤,分享给大家使用. 皮肤下载 版权声明:本文博主原创文章.博客,未 ...
- ZOJ - 3822 Domination （DP）
Edward is the headmaster of Marjar University. He is enthusiastic about chess and often plays chess ...
- Code::Blocks项目配置基础
File 菜单 New :新建( Empty file/file . class . project . build target ) . Recent projects/files :近期打开的项目 ...
- 先学习Oracle 11g的Automatic Diagnostic Repository新功能
Oracle 11g之前.当数据库出现故障,通常情况下,第一次需要看alert刊物.什么,看看哪些记录错误,您可以给我们的提示.alert文件名 是alert_<ORACLE_SID>.l ...