roomba tips

ZendStudio tips. ZendStudio tips: zendstudio tips: This article describes how to use ZendStudio. For your reference, refer to: 1. set Zend Studio usage skills in the template of the new document. This article describes how to use Zend Studio. We will share this with you for your reference. The details are as follows: 1. template settings for the new document:

MySQL database optimization technology-index usage tips and mysql usage tips This example summarizes the index usage of MySQL database optimization technology. We will share this with you for your reference. The details are as follows: Next to the MySQL database optimization technology configuration tips summary, we will further analyze the index optimization ski

Pure code without image Tips implementation process, code image tips implementation A few days ago, when I used Baidu, I found a tips effect. I felt good. I just pressed F12 and looked at the implementation process. At the beginning, I found it amazing, that is, no image is used, or the "◇" symbol is used. Of course, no css3 element is used. First look at the ef

Use velocity tips and velocity tips Due to the company's needs, I used the velocity template for file generation. Here are some tips for using the velocity template: 1. when intercepting a string, note that (1) Use. length () is used to obtain the string length. (2) it is best to replace "-1" in the form of "+ (-1)", because velocity does not support minus, eas

10 tips and tips for Python Development Note: In this article, we assume that we use Python 3. 1. List Derivation You have a list:bag = [1, 2, 3, 4, 5] Now you want to double all elements and make them look like this: [2, 4, 6, 8, 10] Most beginners will probably do this based on their previous language experience. bag = [1, 2, 3, 4, 5] for i in range(len(bag)): bag[i] = bag[i] * 2 But there are better met

Tips for using windows and tips for using windowsWindows tips When saving the web page, you can drag the picture to the bottom right corner (win + D, Double screen drag) and then put it on the desktop. Magnifier -->Win + plus sign or minus sign(Zoom in or out ),Win + Esc(Exit the magnifier ),Ctrl + Alt + I(Reversed) Create a folder named "some_name". {E

Javascript usage tips and js usage tips 1 What if the browser does not support JavaScript? A. Why does the browser not support it? Most browsers have the function of disabling scripts, such as chrome. B. When Javascript is disabled, make sure that the webpage can still implement its core functions (key user requirements) Example: open a link in a new window. You can use the open () method of BOM. function

JQuery tips and tips Tips for using JQ: 1. is () method Checks Matching Element Sets Based on selectors, elements, or jQuery objects. if at least one element matches a given parameter, true is returned. Some small applications are as follows: $("ul").click(function(event) { var $target = $(event.target); if ( $target.is("li") ) { $target.css("background-color",

Practical tips for developing iOS--pop-up app download tips in the HTML page headerThis article describes its simple use:The first step is to set up a local access server. Open a local terminal, create a new folder locally, and store the test HTML page in the folder.　　Enter a line of code in the terminal: Python-m simplehttpserver　　---Step Two: Configure the environmentOpen Safari, preferences, tick "Show

10 PHP Programming tips, 10 PHP tips 1, write the program will use this situation, such as a number rounded rounding. A lot of people would write this:Copy the Code code as follows:Input AIf A-int (a) >= 0.5 thenA = a +1End IfIn fact, this judgment statement can be written using a very simple expression.Copy the Code code as follows:A = fix (A + SGN (a) *0.5)Writing in PHP:Copy the Code code as follows:$a

Six tips on the navigation bar and six tips on the navigation bar UINavigationBarAndUINavigationItemIs a common control in iOS development. Today I will introduce you to the six tips on the navigation bar.1. Set the navigation bar title Self. title = @ "iOS development: iOSDevTip ";2. Set the navigation bar style Setting method: [self.navigationController.navigat

Js Tips 3. js tips Js tips 1. (1) Simultaneously press Ctrl + Enter to submit this form Add an onkeydown event in the multi-line text field The implementation of com. whuang. hsj. ctrlEnter2Submit is as follows: /*** * 1. @param event : textarea onkeydown event 2. @param formElement : textarea itself */com.whuang.hsj.ctrlEnter2Submit= function (event,formEleme

30 tips on Python and 30 tips on Python When I started learning python, I began to summarize a collection of python tips. When will I go to Stack Overflow?Or when I saw a piece of cool code in an open-source software, I was surprised: I could do this again !, At that time, I tried the code myself and added it to my set after I understood its overall idea. This bl

3 command line tips and Linux tips for linux Users The Linux world is full of fun. The deeper we get into it, the more interesting things we will find. We will try to provide you with some tips to make you different from others. Below are three tips we have prepared. 1. How to schedule tasks in Linux without using Cro

This article introduces some tips and techniques for improving and optimizing PHP code, for your reference, the details are as follows 1. Do not use a relative path, to define a root path Such lines of code are common: Require_once ('.. /.. /lib/some_class.php '); There are many drawbacks to this approach: 1, it first searches for PHP including the specified directory in the path, and then view the current directory. As a result, many

Composer is a new generation of PHP-dependent management tools. Its introduction and basic usage can be seen in this new era of Composer PHP dependency management. This article describes the use of composer five tips, I hope to be able to bring your PHP development convenience. 1. Update only a single library Just want to update a particular library, do not want to update all its dependencies, very simple: Composer Update Foo/bar In a

Tips front-end prevents the browser from caching static resources, tips static The mobile browser uc has always performed well. The qq browser has opened the website directly (using the qq browser kernel), and a large amount of static resources are cached. Css js images are ineffective when the page is refreshed due to changes. Computer browsers are okay, because some mobile browsers always cache static res

Git tips: how to remove the right-click menu ?, Git tips If you are following http://www.cnblogs.com/dunitian/p/5034624.html So you don't have so many egg menus (and vice versa: vs will help you install them) Solution: 1. Win + R input cmd 2. If you use a 64-bit system, enter the command: (the expansion contains instructions and 32-bit system solutions) 3. Results ~ Extended: are 32-bit comra

35 jQuery tips on Web Front-end and webjquery tips 1. Right-click prohibited$ (Document). ready (function (){$ (Document). bind ("contextmenu", function (e ){Return false;});}); 2. Hide text in the search text boxHide when clicked in the search field, the value. (example can be found below in the comment fields)$ (Document). ready (function (){$ ("Input. text1"). val ("Enter your search text here ");TextFil

Ten tips and tips for improving website availabilityAuthor: oncoding Source: Tianji net responsibility Editor: Sheng Xiaoying Whether it's a corporate website, a personal blog, a shopping website, or a game website, we all want to attract visitors and give them a pleasant access experience. Availability is a measure of user experience. It can be described with the convenience of visitors to complete website