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In the first-to-one mapping of foreign keys described in the previous section, there is a foreign key column idcard_id in the person table, the primary key ID of the corresponding Idcard table, and one-to-one mapping based on the primary key,

1. Convert the requested data to2. take the first nine bytes of an XML file nsdata * XMLData = [self. Data subdatawithrange:nsmakerange(0,+)]; 3. decoding with UTF-8 encoding nsstring *xmlstr = [[nsstring alloc] initwithdata: XMLData

1, installation SConsTAR-ZXVF scons-2.1.0.tar.gzExport myscons=/root/scons-2.1.0Export scons_lib_dir= $MYSCONS/engine2. Compile and install JsoncppTAR-ZXVF jsoncpp-src-0.5.0.tar.gzCD jsoncpp-src-0.5.0/Python $MYSCONS/script/scons PLATFORM=LINUX-GCC

WebForm Operating principleThe principle of operation is the same: ASPX and ashx run the same mechanism.Operating principle different points:1. When executing the event pipeline, the foreground page class object was created between 7 and 8 events,

Explanation One:In PHP, there is the concept of string.In string, the size of each character is byte (compared to PHP, each character in Java is character, which is the UTF8 character, and each character in the C language can be selected at compile

Welcome everyone to guide and discuss:)　　I. Event propagation at the scope　One. 1 Spreading of the modifications One of the most important things about scopes is that changes are propagated through events and automatically updated so that dependent

HTML> Head> Scripttype= "Text/javascript"src= "/jquery/jquery.js">Script> Head> Body> Div> spanclass= "Color">Dark Curryspan> Divclass= "CC">Div> Div> Div> spanclass=

1th Chapter (X) HTML and CSS Core Foundation1.1 HTML and XHTMLHTML and XHTML are different stages of a language, similar to the relationship between classical Chinese and vernacular Chinese. Because they are also often written as (X) HTML. XHTML is

node. JS Learning Notes Series Total Index Nodejs Study notes (i)---profile and install the node. JS Development environment Nodejs Learning Notes (ii)---event module Nodejs Study Notes (iii)---module Nodejs Learning Notes

JS KeyUp, KeyPress and KeyDown events are all about keyboard eventsWhen a button is pressed or released in every modern browser, there can be three client-side events. KeyDown Event KeyPress Event KeyUp Event The KeyDown event

Reference: http://www.oracle.com/technetwork/cn/community/java/apache-maven-getting-started-1-406235-zhs.htmlWriting this maven primer is because it was found in a developer's hands-on experiment that quite a few people didn't know much about Maven,

JS Code Judge ie6,ie7,ie8,ie9! December 15, 2011 Thursday 14:01 do Web pages sometimes use JS to detect the version of IE, the following is the detection of Microsoft Internet Explorer version of the three kinds of code! There is a code: second

Explain the login function and member management function in the dining item--------------------------------------------------------------------------------------------Three-tier project: Relational data C # class data table name Class name field

The right-hand navigation menu in the company's current project uses the bootstrap (v3.2.0) affix.js (affix plugin) and the Scrospy.js (scrolling monitoring) plugin, which requires a version number >= 1.9.0 of jquery, Now the latest jquery version

I am still learning to use, the wrong place please correct me.Development environment: VS2015 UP1 Project Environment: the ASP. NET 4.6.1 template is: ASP. NET 5 Template Identity version: ASP. NET Identity 3.0.0The completed project has been very

Home transfer parameters are assembled into JSON data, then encoded var param= "{type: '" +type+ "', Text: '" +select_text+ "', Select_: '" +select_+ "', TypeName: '" + Typename+ "'}"; window.self.location= "/" +servername+

1. About scope.A major feature of Angularjs is the two-way binding of data to views, in which the data is essentially a value of scope.About scope, it has to say its scope. Since it is a scope, it certainly involves multiple places. First, when a

When it comes to this question, perhaps someone will ask that CSS does not have the Vertical-align property to set the vertical center? Even some browsers do not support I just need to do a little CSSHack technology can be AH! So here I have to say

2016.03.04Extension: If the list type is passed in the view, how to use droplistSince it's list, then I'm the first one to turn into T list, and the last one is M?@Html. Dropdownlistfor (Model=>model. First (). Title, viewdata["title"] as List,