Fast drawing with Echarts - rendering histogram and line graph in real time based on data

Echarts ECharts, an open-source visualization library implemented by JavaScript, can run smoothly on PC and mobile devices, compatible with most of the current browsers (IE8/9/10/11, Chrome, Firefox, Safari, etc.), the bottom layer relies on the lightweight vector graphics library ZRender, providing intuitive, interactive and ...

Posted on Fri, 31 Jan 2020 09:22:28 -0500 by kaupp

Media query: how to locate desktop, tablet and mobile devices?

I've been researching media queries, and I still don't know how to locate certain sizes of devices. I want to be able to locate desktops, tablets and mobile devices. I know there will be some differences, but it would be nice to have a common system for locating these devices. Some examples I found: # Mobile only screen and (min-width: ...

Posted on Fri, 31 Jan 2020 07:37:55 -0500 by Klojum

Front end component - vertical range control (2)

Last article: Front end component - vertical range control (1) Continue the last article, we have written the control component, here I use two methods. Function encapsulation: var $rangeVer = function() { var $dom = $('' + '<div class="gm-vertical-range" data-gm-value="100" data-gm-max="100" data-gm-min="0"&g ...

Posted on Fri, 31 Jan 2020 03:13:21 -0500 by liquidchild_au

Summary of Android Intent usage

An Intent mechanism is provided in Android to assist the interaction and communication between applications. Intent is responsible for describing the actions, actions involving data and additional data of an action in an application. Android is responsible for finding the corresponding components, passing Intent to the calling components, and c ...

Posted on Thu, 30 Jan 2020 12:06:28 -0500 by satre

python tkinter realizes the basic version of Tetris

General catalogue 1, Basic interface 2, The interface moves 3, Generate, move, fix, eliminate 4, Elimination and score =======================made by big shuang======================= 0, train of thought To make the game interface move, we need to realize two points 1 - refresh the page reg ...

Posted on Wed, 29 Jan 2020 22:33:12 -0500 by inversesoft123

Wechat small program framework analysis small hands-on -- imitating xiangha recipe small program making

Xiangha recipe is a small program around delicious food. You can check all kinds of recipes here.   1, Open wechat developer tool and create a new project: xhcp. The following picture:     2. Establish the following directories:         III. place the bottom label navigation icon, food rotation picture, Gong grid navigation icon and xiangha he ...

Posted on Wed, 29 Jan 2020 11:10:27 -0500 by Genux

AspectJ pointcut indicator-03-execution

execution() Match the connection point of the target method satisfying a matching condition The final structure of each class is as follows: 1,Factory package com.test.aspectj.expression; /** * Factory interface */ public interface Factory { // Make products void make(); // transport void delivery(St ...

Posted on Wed, 29 Jan 2020 09:48:06 -0500 by AmbroseChapel

C ා SQL add data, delete data, modify data, query data

Login interface query String constr = "data source=.;initial Catalog=DB1;user id=sa;password=123"; SqlConnection conn = new SqlConnection(constr); string strcommand = "insert into Cuser(Cname)values('" + UserNameTxt.Text + "')"; SqlCommand cmd = new SqlCommand(strcomm ...

Posted on Tue, 28 Jan 2020 23:18:33 -0500 by quiettech

pygame push box prototype

pygame pkinter Preface The beginning of 2020 is not good. Do you know what I'm doing at 4 a. m "At four o'clock in the morning, I got up early to study.". This kind of four-point speech comes from Kobe Bryant's interview with reporters, asking: "why can you achieve this?" He smil ...

Posted on Mon, 27 Jan 2020 05:54:44 -0500 by WormTongue

Bootstrap basic use

Bootstrap Introduce: Add the CSS file of Bootstrap as a label to the label and place it before all other stylesheets. <link rel="stylesheet" href="https://cdn.jsdelivr.net/ npm/bootstrap@4.4.1/dist/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug 5TOeNV6gBiFeWPGFN9M ...

Posted on Sun, 26 Jan 2020 10:57:22 -0500 by peterj