("ISBN", "2-3631-4"); // you can specify the ISBN attribute of the node.
XmlElement xesub1 = xmldoc. CreateElement ("title ");Xesub1.InnerText = "CS from entry to entry"; // set a text nodeXe1.AppendChild (xesub1); // Add it to the XmlElement xesub2 = xmldoc. CreateElement ("author ");Xesub2.InnerText = "Hou Jie ";Xe1.AppendChild (xesub2 );XmlElement xesub3 = xmldoc. CreateElement ("price ");Xesub3.InnerTe
How to operate XML in C #. netNamespace to be added:Using system. xml;
Define several public objects:Xmldocument xmldoc;Xmlnode;Xmlelement xmlelem;
1. Create an XML file in the directory with the same name as the server:
Method 1:Xmldoc = new xmldocument ();// Add the Declaration section of XML, Xmldeclaration xmldecl;Xmldecl = xmldoc. createxmldeclaration ("1.0", "gb2312", null );Xmldoc. appendchild (xmldecl );
// Add a root elementXmlelem = xmldoc. createelement ("", "employees ","");X
The PHP button returns the content in the 404 error book, and the database and login. PHP file have been created.
".mysql_error().""; } if(isset($_post['author']) isset($_post['title']) isset($_post['category']) isset($_post['year']) isset($_post['isbn'])) { $author = get_post('author'); $title = get_post('title'); $category = get_post('category'); $year = get
files, usually causing versioning and location problems because of misunderstanding of the Java class Loading Model
See alsoCode smell-symptom of unsound ProgrammingList of software development philosophies-approaches, styles, maxims and philosophies for software developmentSoftware Peter Principle
References^ Budgen, D. (2003). Software design. Harlow, Eng.: Addison-Wesley. pp. 225. ISBN 0-201-72219-4. http://books.google.com/books? Id = bnY3vb606bA
;
Using
System. text; Namespace Bookshop. Model{[Serializable] Public Class Book{ /// /// Book No. /// Private Int ID; Public int id { Get { return ID ;} set {id = value ;} } // // book title // private string title; Public string title { Get { return title ;} set {Title = value ;} } // // author /// private string author; Public string author {
. InnerText;Save the XML fileString Path=server.mappath ("~/file/bookstore.xml");Xml. Save (path);or Use:xml. Save (HttpContext.Current.Server.MapPath ("~/file/bookstore.xml"));Second, specific examplesHow XML is manipulated in C#.netNamespaces that need to be added:Using System.Xml;Define several common objects:XmlDocument xmldoc;XmlNode XmlNode;XmlElement Xmlelem;1, create an XML file to the server directory with the same name:Method One:xmldoc = new XmlDocument ();Join the declaration paragra
specified node string id = node. attributes ["id"]. value; // Obtain the text string content = node in the specified node. innerText; // Save the XML file string path = Server. mapPath ("~ /File/bookstore. xml "); xml. Save (path); // or use: xml. Save (HttpContext. Current. Server. MapPath ("~ /File/bookstore. xml "));
How to operate XML in C #. netNamespace to be added:
Defines several public objects: XmlDocument xmldoc; XmlNode xmlnode; XmlElement xmlelem;
1. create an xml file in the direct
Use the Http class that comes with ThinkPHP to download the remote image to the local implementation code. The Http class is under the ThinkPHPLibORGNet directory. Next, let's take a look at how to call it. Copy the code as follows :? Phpimport (Com. Buyback. QueryAmazon); import (ORG. Net. Http); classIm Http class is under the ThinkPHP/Lib/ORG/Net directory. Next, let's take a look at how to call it.
The code is as follows:
Import ("Com. Buyback. QueryAmazon ");Import ("ORG. Net. Http ");
and use it
Child element
$ Books = $ dom-> createElement ('books ');
$ Response-> appendChild ($ books );
// Create a title for the book$ Title = $ dom-> createElement ('title ');$ TitleText = $ dom-> createTextNode ('php and AJAX ');$ Title-> appendChild ($ titleText );
// Create an isbn element for the book$ Isbn = $ dom-> createElement ('isbn
How to operate XML in C #. netNamespace to be added:Using system. xml;
Define several public objects:Xmldocument xmldoc;Xmlnode;Xmlelement xmlelem;
1. Create an XML file in the directory with the same name as the server:
Method 1:Xmldoc = new xmldocument ();// Add the Declaration section of XMLXmlnode = xmldoc. createnode (xmlnodetype. xmldeclaration ,"","");Xmldoc. appendchild (xmlnode );// Add a root elementXmlelem = xmldoc. createelement ("", "employees ","");Xmldoc. appendchild (xmlele
Http://weekzero.cnblogs.com/articles/178140.htmlHow to operate XML in C #. netNamespace to be added:Using system. xml;
Define several public objects:Xmldocument xmldoc;Xmlnode;Xmlelement xmlelem;
1. Create an XML file in the directory with the same name as the server:
Method 1:Xmldoc = new xmldocument ();// Add the Declaration section of XML, Xmldeclaration xmldecl;Xmldecl = xmldoc. createxmldeclaration ("1.0", "gb2312", null );Xmldoc. appendchild (xmldecl );
// Add a root elementXmlelem
The contents of the book, and then has established the database and the login.php file.
". Mysql_error ().""; } if (Isset ($_post[' author ')) isset ($_post[' title ') isset ($_post[' category ') am p; isset ($_post[' year ')) isset ($_post[' ISBN ')) {$author = Get_post (' Author '); $title = Get_post (' title '); $category = get_post (' category '); $year = Get_post (' year ');
(); }} 2. URL Optional parameters and default valuesWe can use the question mark "?" To mark an optional parameter, you can also set a default value for the parameter:public class bookscontroller:controller{ //Match:/books //Match:/books/1430210079 //question mark indicates that ISBN is optional [Rout E ("Books/{isbn?}")] Public ActionResult View (string
valuesWe can use the question mark "?" To mark an optional parameter, you can also set a default value for the parameter:public class Bookscontroller:controller{Matches:/booksMatches:/books/1430210079The question mark indicates that the ISBN is optional[Route ("Books/{isbn?}")]Public ActionResult View (String ISBN){if (! String.IsNullOrEmpty (
Grouping in Xpath
JSONPath expressions can use the dot–notation$.store.book[0].titleor the bracket–notation$[‘store‘][‘book‘][0][‘title‘]The following XPath expression/store/book[1]/titleJsonPath would look likex.store.book[0].titleOrx[‘store‘][‘book‘][0][‘title‘]JSONPath Examples
123456789Ten One A - - the - - - + - + A at - - - - - in - to
{ "store": {"book": [ { "category": "reference","author": "Nigel Rees","title": "Sayings of the Century","price": 8.95},{ "c
Grouping in Xpath
JSONPath expressions can use the dot–notation$.store.book[0].titleor the bracket–notation$[‘store‘][‘book‘][0][‘title‘]The following XPath expression/store/book[1]/titleJsonPath would look likex.store.book[0].titleOrx[‘store‘][‘book‘][0][‘title‘]JSONPath Examples{"Store": {"book ": [ {"category": "Reference", "author": "Nigel Rees", "title": "Sayings of the Centur Y ", " price ": 8.95 }, {" category ":" Fiction ", "
Item class, that is, the object class. The Code is as follows:
import scrapyclass BookItem(scrapy.Item): title = scrapy.Field() isbn = scrapy.Field() price = scrapy.Field()Write the Spider class to set the name of the Spider, the domain name that can be crawled and from which link:
import scrapyfrom book_project.items import BookItemclass BookInfoSpider(scrapy.Spider): name = "bookinfo" allowed_domains = ["allitebooks.com", "amazon.com
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