The acquisition of the scroll height of the mobile is achieved by using the native JS method, which binds the DOM element in Vue and is obtained by adding ref, but the same name can only bind one, this. $refs. Domname to get,function Homescrollevent () {Const PAGESCROLLTOP = Document.body.scrollTopif (Pagescrolltop > 80) {Store.dispatch (' Updateheader ', false)} else {Store.dispatch (' Updateheader ', true)}}Handling browser forward and backward issu
executed.Buried point refers to: in the Web page pre-add a small piece of JavaScript code, this code snippet will be dynamically created a script tag, and the SRC attribute to a separate JS file, this time the individual JS file (green node in the diagram) will be requested by the browser and execution, this JS is often A real data collection script.After the data collection is completed, JS requests a backend data collection script (backend in the figure), which is usually a dynamic script dis
C + + Acquisition timeHeader file Chrono, namespace Std.Now timeStd::chrono::system_clock::now () returns the current time of the system clockClockStd::chrono::system_clock represents the current time of the system, is an unstable clock, and provides a function to convert a point in time to a value of time_t typeStd::chrono::steady_clock represents a stable clock, so-called stability refers to the call now (), whose value is always greater than 1 time
Linux Help information acquisition and man chapter partitioning Linux help man chapter Linux get Help on the way(1) Help (2) man (3) Info command get online (4) program comes with the documentation (5) Official documentation of the main release (6) Program official documentation (7) search engine (8) Reference books(1) HelpInternal command~] #help CommandExternal commandcommand to bring in a brief format for use Help~] #Command--help(2) ManMan's posit
An overview of a series of essays and the resulting backgroundThis series of the opening by everyone's warm welcome, this is a great encouragement to bloggers, this is the second chapter of this series, I hope you continue to support, for me to continue writing to provide power.own development of the Bean John Blog backup expert software tools since the advent of more than 3 years, by the vast number of bloggers writing and reading enthusiasts love. At the same time, there are some technical ent
An overview of a series of essays and the resulting backgroundThis series of the opening by everyone's warm welcome, this is a great encouragement to bloggers, this is the second chapter of this series, I hope you continue to support, for me to continue writing to provide power.own development of the Bean John Blog backup expert software tools since the advent of more than 3 years, by the vast number of bloggers writing and reading enthusiasts love. At the same time, there are some technical ent
Linux System Dynamics IP acquisition and Static of addresses IP configuration of the addressToday in Linux The system has done the following experiments in this experiment encountered in the knowledge points and the experimental process is as follows#- 1 . Broadcast protocol options [Bcast] broadcast specify IP address. Use local IP address and subnet mask create a default broadcast address. Subnet mask indicates which part IP #-2
, including, but lacks the coordinates of the bus site, bus line coordinate data. This makes people crazy, no space coordinates how to fall, how to analyze, so this article focuses on the site coordinates, the acquisition of the line.Take the figure bar bus as an example, after clicking on a bus, it appears the road bus detailed site information and map information. Bo Main Dayton feeling excited, feel immediately will succeed, all kinds of grasping b
interval of January 1, 1970, stored in Rawtime.#include "time.h"void Main (){time_t Rawtime;struct TM * TIMEINFO;Time (rawtime);Timeinfo = LocalTime (rawtime);printf ("/007the Date/time is:%s", Asctime (Timeinfo));Exit (0);}=================#include--The required time function header filetime_t--Time type (time.h definition is typedef long time_t; Traced, time_t is long)struct TM--time structure, time.h is defined as follows:int tm_sec;int tm_min;int tm_hour;int tm_mday;int Tm_mon;int tm_year;i
even get shorter). So we have to introduce another function of c++11.Type Acquisition (DECLTYPE) since the compiler is able to infer the type of a variable, we should be able to display the type information for a variable in the code. So C + + introduces another feature: Decltype. (I really don't know how to translate this word, let's call it type acquisition).[CPP]View Plaincopy
int x = 3;
De
Today's society is already an information society, can quickly and efficiently access information, become the core of competitiveness, already more than 10 years ago, the popularization of the Internet has accelerated the flow of information, the way we get information has gradually shifted to a more efficient internet, and now, the advent of micro-Bo era, but also to bring you what kind of information?
Remember an internet giant said, users of the four major needs of the Internet is: informati
First, prefaceCompared to JS this direct end, full of thorny path, jquery is undoubtedly a broad road, enough concise, easy-to-use gave it a glorious position. However, after all, is a plug-in around the road, when the path to walk to become a road, the road has lost his own advantage.Native JS is not as good as jquery, convenient, or not so easy for us to use as jquery, or even a dependency that cannot be discarded. But we still have to throw away the hand that accompanies us for many years cru
A few days ago a friend asked me to help do a collection of news information procedures, smoked a little time to write a PHP version, essays recorded.When it comes to acquisition, it's nothing more than a remote access to information------Read moreIt's an enhanced version of the Simple Thief program.Here is the corresponding core code (don't do bad things oh ^_^)The content to be collected is an announcement on a game website, such as:Basic page infor
After more than 10 years of procedures, recently changed to do the website, after a survey of research, the final selection of beautiful picture station HTTP://www.gg4493.cn.This brings a problem, you must go to the site of the major beauty site for the collection of pictures, before all are using Java for data collection, each time to analyze the HTML, write n more code, I heard that Python collection function is very strong, so I deliberately simple learning under Python found this thing reall
jquery Practical Tips _ Input Box text acquisition and loss of focus of a simple example
The above jquery practical tips _ Input Box text acquisition and loss of focus of a simple example is a small series to share all the content, hope to give you a reference, but also hope that we support the cloud habitat community.
Sometimes the book is too thick to cover all the details. For example, today I encountered a problem in the learning process: servlet initialization parameters and context initialization parameters of the method, in the book a little bit. But when debugging always error, the procedure is consistent, the result is different. Later, through their own continuous testing and search related articles to read, finally solved the problem. The following description of the problem-solving method is based
Test and analysis of the speed of extracting core function from PHP data acquisition
As a result of the program needs, the PHP acquisition of character extraction in the core of the implementation of the speed test.
Three of the most common extraction methods were tested:
Method One:
Require "class.debug.php";
function GetContent ($SOURCESTR)
{
$content = Strstr ($sourceStr, ' form ');
$content = substr ($c
Based on the first two blogs, the Kinect2.0 can be used for video capture in oni format.
The acquisition procedure is as follows
Status Ccaptruethread::gr_init_kinect (CString videopath) {Status Xresult = STATUS_OK;
Device Device;
Const char* Deviceuri = Any_device;
do {openni::shutdown ();
Xresult = Openni::initialize ();
if (STATUS_OK!= xresult) {strlogmsg = _t ("Initialization environment fails, please check that the environment is instal
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