Sometimes, it is necessary to deploy multiple websites under the same domain name, access to the external unified portal, but different programs, listening ports are different, if the need for unification, you need to do proxy. The following is a
Using PHP to upload multiple files is an essential part of learning PHP, so I based on the course of the courses online adapted to form the following code, if there is any problem, please show me this little rookie!upload.class.php: Encapsulation of
In IE:Document.body.clientWidth ==> Body Object widthDocument.body.clientHeight ==> Body Object HeightDocument.documentElement.clientWidth ==> Visible Area widthDocument.documentElement.clientHeight ==> Visible Area heightIn
I have to say, jquery is too powerful. Star rating, this is intended to use switch case to traverse, fortunately, only five stars. Think about not reconciled, to check the next jquery API, sure enough to find two Super practical selector: Prevall
In some scenarios, it is necessary to invoke an interface in the subdomain in the primary domain, and if an AJAX request is made directly to the subdomain in the primary domain, the cross-domain error is reported and the IFRAME can be used to
BackgroundA variable substitution of a multi-environment configuration file has recently been made using the WEBX autonconfig tool.Often we encounter different environmental packaging problems are to do a set of steps to do, but how to solve this
Use Nginx to do the load, but the backend has n multi-server, request in the past do not know to which server, in order to facilitate the location of the problem,We customize the HTTP header to join the backend server,First look at the
set the static content cache, is to let the Web page picture and JS, CSS these resources, including the page cache to local rather than every time to the server to request resources, but set the specified time, so that can reduce the bandwidth of
ScopeJavaScript executes a scope chain that is used for variable parsing, and the global execution context has only one object variable that defines all the variables and functions in JS. When a function is created, a new local scope is generated,
Uploading large files in a Web page has always been a headache, and the main problems are usually two categories: one is long upload time in the middle of an error will lead to naught; second, the server configuration is complex, to consider
(1) Know the concepts of several terms in a namespace before you introduce references.1) Fully qualified nameAny PHP code can reference a fully qualified name, which is an identifier at the beginning of a namespace backslash, such as:\c\root\sub1,\c\
you can alias fields and table names in MYSQL such as:1)SELECT a.username,a.order from orders as aINNER JOIN user as B on a.username=b.username; -- alias the table2) SELECT COUNT (goods_id) as totalgoods from Tdb_goods; -- alias the field1) in the
The tag defines an ordered list. The list sort is displayed as a number. Use the tab to define list options.Hints and NotesTip: If you need an unordered list, use the tab. tip: use CSS to define list styles.
Properties
value
The first case is that the width and height are written in the style sheet, like #div1{width:120px;}. In this case, the width can not be obtained by #div1.style.width, but by #div1.offsetwidth.The second case is that the width and height are written
One of the first in Site performance optimization is to reduce the HTTP request, so to reduce the HTTP request? In fact, some HTTP analysis tools can help us understand the process that the browser needs to go through when requesting a resource:1
TIPS: solve the problem that "FF cannot read outerHTML", ffouterhtml
The DOM attribute outerHTML can be used in IE, Opera, google Chorme, and other browsers, but Firefox does not support this attribute. Although this attribute is not commonly used,
Html5-canvas canvas, html5canvas clear canvas
This section describes the line segment, circle, rectangle, Font, polygon, image rendering, and image rotation.
your browser does not support the canvas attribute
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Hdu 5335 Walk Out (2015 Multi-University Training Contest 4), hdu5335Walk OutTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission (s): 194 Accepted Submission (s): 32Problem DescriptionIn
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Algorithm question: Give You A natural number N, and find the even numbers of all the prime numbers in [6, N ., Prime Number of Natural Numbers
/* Algorithm question: Give You A natural number N, and find the even numbers of all the prime numbers
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