Php learning notes 1--PHP data type, data storage, learning notes data typePHP Data Type scalar data type:
Type
Chinese name
Description
Boolean
Boolean
TRUE or FALSE (true false)
String
String type
Single quotes "Do
/*** Mark the color of the selected data as '# c90000' (the subsequent values are based on this color)*/Function selectcondition (element ){VaR aelement = element. getelementsbytagname ("A") [0];VaR STR = deletestylewithelement (aelement. parentelement, element );If ('0' = Str ){Alert ("the content of the current project has been filled in the text box! ");} Else if ('1' = Str ){If (aelement. innerhtml ){If (aelement. innerhtml. indexof ('# c90000 ')!
// If no data exists, insert new data $ SQL = "insert into {$ ECs-> table ('cat _ Lang ')} (cat_id, lang_id, cat_name, keywords, cat_desc) values ({$ cat_id}, {$ k}, '{$ Val ['cat _ name']}', '{$ Val ['keyword']}', '{$ Val ['cat _ desc']}') on duplicate key update cat_name = '{$ Val ['cat _ name']}', cat_desc = '{$ Val ['cat _ desc']}', KEYWORDS = '{$ Val ['cat _ desc']}' "; note the following: the primary
A screenshot of an Ajax method in the actual combat project
Knowledge Point One: jquery initializes the page mode.
Knowledge Point two: jquery traversal data Way
For In loop:
For In loop for
(x in Obj.bkdata) {
//x representation is subscript to specify the variable, the specified variable can be an array element, or it can be an object's property.
Console.log (obj.bkdata[x]);
Element each method
if (obj.status = =
[Data sharing (dry goods)] wcf rest Service releases data and obtains data, wcfrest
Recently, we are working on A project that requires us to do something. Let's call it data sharing. Our company is Company A, and the other company is Company B, company A provides A data ser
How to display duplicate data in php text data? How can I delete duplicate data and keep only one of them? Data File ip.txt, some of which have the same IP data, such as: 1348453617 | 95.6.5.162 | 2012-09-2410: 26: 571348453024 | 180.254.252.144 | 2012-09-2410: 17: 04134 php
Input and Output
==> Tested object ==>
Dependency exception
Test procedure:
First use the minimum data volume, then the general data volume, and finally the massive data.
Use the minimum data volume to test-driven development, implement basic functions, and create basic function tests.
Test all functions with the
Course 3 Data Query: Coredata data Data QueryProblem
James's class has passed the last month's test. The teacher Daming wants to reward some outstanding students, while the other part wants to check for missing vacancies. Daming decided to find the top 10 in the top 10, top 10 in each subject, and top 10 in the descending order. In the past, Daming used to draw p
Recently in the project, two-level password verification has been a problem, the original use of Ajax asynchronous commit verification, the program just started to run when there is no problem, but once the user modifies the level two password, when the need to enter a level two password will always be verified unsuccessful, the resulting password is always updated before the data, Looked for a long time to find out that the original is due to the pro
Generate the following data in XMLThe actions are as follows in C # scriptCreate a documentXmlDocument doc = new XmlDocument ();void Start () {Creatxml ();Create a documentvoid Creatxml () {Create a declarationXmlDeclaration Dec = doc. Createxmldeclaration ("1.0", "UTF-8", null);Statements are stitched into the documentDoc. AppendChild (DEC);Create a root element nodeXmlNode RootNode = doc. CreateNode (XmlNodeType.Element, "Transform", null);To add a
The data binding process is as follows:The 1.SPRINGMVC main frame passes an instance of the ServletRequest object and the target method to the Webdatabinderfactory instance to create the DataBinder instance object2.DataBinder calls the Conversionservice component assembled in the spring MVC context for data type conversion, formatting, and populating the request information in the servlet into the Parameter
Write core dataCode
During the previous data model creation process, we have created three managed objects (nsmanagedobject), that is, object objects.
Here, we create objects in other data core frameworks and enable the persistent storage of core data.Open the cartappdelegate. h file in the project and add the nsmanagedobjectcontext attribute and the prototype definition of the two methods. The updated
Data: useful information.Data type: The classification of the data.Data types in the C # language:1.char character Type: Single text (man alphanumeric punctuation), written (in pairs of single quotation marks).2.string String Type: Unlimited number of words (man alphanumeric punctuation), the way of writing (in pairs of English double quotation marks).3.int integer type: Short integer, used to represent an integer, written in (direct writing).4.double
1. Data sets
Only trained a class of hand.First we need to process our dataset to get a data set similar to VOC:
where Jpegimages,labels name do not change Oh, the program can not find the very trouble
Find_replace (Path, "Dout", "labels", Labelpath);
Find_replace (Labelpath, "jpegimages", "labels", Labelpath);
Find_replace (Labelpath, ". jpg", "txt", labelpath);
Find_replace (Labelpath, ". JPEG ",". txt
A problem occurred during project creation. When double-clicking a row of data on the grid page, double-click the row to automatically load the data to the double-click Page (Ext pop-up box ), you can use this. down (''form ). getForm (). loadRecord (record) to automatically load, but now there is a need to double-click the grid row to pop up a new browser page (not the ext pop-up box, through the window. o
Data storage (3) -- JSON Data Processing and -- json Data ProcessingJSON is a lightweight data exchange format with good readability and ease of writing. It can exchange data between different platforms. JSON adopts a highly compatible text format and has behaviors similar t
1. Use DIH to upload structured data
Many search applications index structured data, such as relational databases. DIH provides a mechanism for storing and indexing structured data. apart from relational databases, SOLR can index content from HTTP, based on data sources such as RSS and atom feeds, e-mail libraries, and
"/> ButtonAndroid:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:text= "Login"Android:layout_marginright= "50DP"Android:layout_centerhorizontal= "true"Android:layout_alignparentright= "true"/> Relativelayout>LinearLayout>The interface effect is as follows:2. Code logic, divided into Mainactivity class and Saveuserinfo tool classThree steps: Initializing the UI, initializing the data (loading), initializing t
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