There is a strange problem when you reuse XMLHttpRequest for post data under Chrome.

var http_request; //is outside the declaration object, mainly in order to use    //in Updatepage without refreshing the content function post (URL, Parameter) {       if (http_request==null)     {         http_request = gethttprequest ();     }      

What is the difference between text/html and Text/plain?

MIME is the primary method by which the server notifies the client of what type of file to transfer, and the client browser tells the server its parameters through mime.On the web, if the received file does not have a MIME header, it defaults to

Meta Tags common attribute collation

In the Segmentfault see this article, think the collation is very detailed, so reproduced come and share with you.Original address: http://segmentfault.com/blog/ciaocc/1190000002407912 http://www.qianduan.net/meta-tags-list/CiaoccCopyright CIAOCC

Dynamic page Crawl Example (WEBCOLLECTOR+SELENIUM+PHANTOMJS)

Goal: Dynamic page crawlingDescription: The dynamic page here refers to several possible: 1) requires user interaction, such as common login operations, 2) the Web page through Js/ajax dynamic generation, such as an HTML has JS generated aaa.This

[NodeJS] NodeJS is configured with NPM (Node Pagkage manager).

have been ready to start learning Nodejs, but have to say that Nodejs installation and configuration on Windows is a pit.In particular, the configuration of the module location in NPM.Okay, nonsense. Don't say much, first download the Nodejs version.

Discuz $_g Global Variables

$_g saved the discuz!. All preprocessing data in theCaching can improve the performance of the program, some configuration data is not necessary to query the database every time, as long as the changes in the time to update the cache.discuz! All of

Two ways to implement user authentication in PHP

Users often need to restrict access to certain important files or information when they design and maintain a site.  In general, we can adopt the HTTP protocol-based user authentication mechanism built into the Web server. When a visitor browses a

Tbody, THEAD, tfoot in HTML DOM table tags (objects) are automatically generated by a small experience

A object,1. When the inside is not written with tags, but contains one or more tags (or or or or or ),The object will have a layer of by default. (If the thead tag is not written in it, it will not be generated by default thead.tfoot).2.

PHP Learning notes to convert a Word document into an HTML file

to convert Word documents to HTML files visible = 1; $word->documents->open ($wfilepath) or Die ("Cannot open this file"); $htmlpath = substr ($wfilepath, 0,-4); $word->activedocument->saveas ($htmlpath, 8); $word->quit (0); return

PHP ORM Object Relational Mapping

The full name of the ORM is the object Relational Mapping, which is a relational mapping of objects. The essence of it is to represent the business data in the relational data (library) in the form of objects, and to organize these objects by object-

BAT batch processing method for fully automated (silent) Software Installation

BAT batch processing method for fully automated (silent) Software Installation This article describes how to install software in full automatic (silent) BAT batch processing (including four common installation package formats ), this article

How to modify MP3 files using Python

How to modify MP3 files using Python This example describes how to modify an MP3 file in Python. Share it with you for your reference. The details are as follows: The MP3 File Modified by this program is smaller than the original one. Because an

Enable Logging in Hibernate and enable logging in Hibernate

Enable Logging in Hibernate and enable logging in HibernateEnable Logging in Hibernate Author: chszs, reprinted with note. Blog homepage: http://blog.csdn.net/chszs In the project, if you want to troubleshoot and identify bugs, you cannot leave the

Six tips for improving Python Running Efficiency

Six tips for improving Python Running Efficiency Python is an excellent language that allows you to perform many operations with a very small amount of code in a short time. In addition, it also easily supports multi-task processing, such as

SendMail send tls, sendmail send tls

SendMail send tls, sendmail send tls This sendMail is a script written in perl.You can view its help information. [root@ST fupeng]# ./sendEmail sendEmail-1.56 by Brandon Zehm Synopsis: sendEmail -f ADDRESS [options] Required: -f ADDRESS

Laravel permission Control Organization-middleware and laravel Middleware

Laravel permission Control Organization-middleware and laravel MiddlewareIntroduction HTTP middleware provides a convenient mechanism to filter HTTP requests entering the application. For example, Laravel contains a middleware by default to verify

Let's talk about JAVA's proxy mode. I. Let's talk about java's proxy mode.

Let's talk about JAVA's proxy mode. I. Let's talk about java's proxy mode.I. intermediary isolation Proxy mode: The first time I came into contact with it, I read a book called "big talk design mode" when I was studying. Net. It has been almost

Python uses urllib to download mp3 files by Baidu Music category

Python uses urllib to download mp3 files by Baidu Music category This example describes how python uses urllib to download mp3 files by Baidu Music category. Share it with you for your reference. The specific implementation method is as follows: ?

Crazy XML learning notes (10) --------- role of XML, crazy xml Handouts

Crazy XML learning notes (10) --------- role of XML, crazy xml Handouts I haven't sorted out XML knowledge for a long time. It's time to sort it out. On the one hand, the teacher is about to finish the course. I should review it and sort out my

Enterprise practical training-web Front-end design and practical training-web Front-end

Enterprise practical training-web Front-end design and practical training-web Front-end This week, we arranged enterprise training. The company is a Beijing Golden Source wanbo company. One of its two subsidiaries is a development project and the

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