delay | 易学教程

jQuery slideshow with different delay times

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问题 I have used Innerfade and Cycle, but I have several divs I need to fade in, pause and fade out, but I want to pause at different rates for different slides because some will have more content than others. I didn't see how I could accomplish this with Innerfade or Cycle. I tried this, but all of the events fire at once. <div id="slides"> <div id="slide1" style="display:none;">Content1</div> <div id="slide2" style="display:none;">Content2</div> <div id="slide3" style="display:none;">Content3<

Detect when a script delays and allow it to skip or continue in PHP

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问题 I have a file, lets say file1.php, that within the script executes a file using: exec("php-cli -f _DAEMON.php") after executing the exec() command, it needs to run more code, the problem is that _DAEMON.php as its name says, is a Daemon and it will never stop running, so it freezes file1.php without allowing the rest of the code to run. Is there a way to allow the code to continue executing even if exec("php-cli -f _DAEMON.php") has not finished. Or to detect if the code delays for more than

Play audio when clicking on button and redirect after sound is done playing

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问题 I made I simple site with four buttons. If I click one I want it to play a sound and when the sound is done playing (or after 'X' amount of seconds) I want it to redirect. This is my code so far. I have no idea on how to put in the sound and the delay. <html> <head> <link rel="stylesheet" type="text/css" href="/level1/style.css"> </head> <body> <img STYLE= "top: 20px; Left: 200px; height:900px; width: 800px position: absolute;" src="\images\border.jpg"> <img STYLE= "position: absolute; top:

IOS indicator before change the view

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问题 i have a collectionView, with 8 Items. One item is TableViewController, and downloading Images for cell BackgroundView. When i just click on Item, the TableView appears 2-3 second later. (Sometimes 5sec., when bad connection). For this reason, the users will think the app is frozen. I want to implement an indicator, which appears until the view is loaded. When do i know the TableView is finished with downloading? Because when i click the item, the code from "TableViewController" is running,

Pygame.key.get_pressed - how to add interval?

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问题 I have made a simple grid and a simple sprite which works as "player". but when i use arrow keys to move, the character moves too fast as shown in the picture below: and my question is: How do I set delay or Interval after each keypress event to prevent this problem? player.py #!/usr/bin/python import os, sys, pygame, random from os import path from pt import WIDTH,HEIGHT from pygame.locals import * img_dir = path.join(path.dirname(__file__), 'img') class Player(pygame.sprite.Sprite): def _

Typescript Loop with Delay

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问题 I'm trying to create a metronome with Typescript. I have this javascript code: (function theLoop (i) { setTimeout(function () { metronome.play(); if (--i) { theLoop(i); } }, 3000); // interval set to 3000 })(10); // play it 10 times And I wanted to convert it into Typescript code. Unfortunately I don't know how to do this (espacially regarding the last line => })(10); Can someone help me with this? 回答1: As everyone said, typescipt is a superset of javascript so your code is valid typescript,

Jquery image fadein delay by X

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问题 How can I get my images to appear one after the other? I am currently using Jquery fadein to make my images fadein but I want them to start at different times. Is there anyway i can delay an image from fading in? in seconds? <script type="text/javascript"> $(document).ready(function(){ window.onload = function() { $('.fader1').hide().fadeIn(3000); $('.fader2').hide().fadeIn(9000); $('.fader3').hide().fadeIn(6000); }; }); </script> <div class="fader1"><img src="demo.jpg"></div> <div class=

javascript - bad algorithm firing concurrent loops

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问题 I created a relatively small dynamic banner rotation script with icons at the bottom for bringing a particular banner into focus. Firing a mouseenter over a banner pauses the show, but sometimes when I mouseout from my banner, the delay for certain banners gets shortened. I'd even understand if it just happened once, but the delay is then set for that shorter amount of time every time the banner comes back around in the rotation, and often the shortening happens in one other place in the list

chrome.tabs.create function wrapper, why doesn this work?

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问题 I have the latest Chrome, I'm building an extension. Consider the following code: var returnTab = false; // init the variable as false var createNewTab = function(){ returnTab = false; // make sure we start with this var as false chrome.tabs.create({url:'http://www.google.com/'}, function(tab){ returnTab = tab; // put the returntab object inside the variable }); while(returntab===false){ }; // wait for the tab to be created. return returnTab; }; c = createNewTab(); All fine and it should work

Python subprocess, kill process after timed delay

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问题 I'm working with Python and Raspberry Pi for the first time (it's a Pi 2) and trying to trigger a timed set of commands. I've got most of it figured out except the very end, where I want to kill all processes. The logic is as follows: -- Trigger an audio file (.wav) called "countdown" -- Trigger another audio file (.wav) called "dixie" -- While dixie is playing trigger a wget command to trigger a photo on my camera -- Keep playing "dixie" until the previous wget finishes executing -- When