使用jQuery为无序列表(ul)中的列表项(li)添加背景颜色

编程 专栏收录该内容
¥29.90 ¥99.00
415篇文章

要在使用jQuery编写的网页中为无序列表中的列表项添加背景颜色,您可以按照以下步骤进行操作:

步骤 1:引入jQuery库
首先,在您的HTML文件中引入jQuery库。您可以从jQuery官方网站(https://jquery.com/)下载最新版本的jQuery库,并将其包含在您的HTML文件中。确保在您的HTML文件中的标签内添加以下代码来引入jQuery库:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></
别再搞混了!用示波器实测SVPWM:相电压、线电压、端电压波形到底长啥样?(附TI/ST官方笔记解读) 本文详细解析了SVPWM波形实测中的相电压、线电压和端电压的区别与测量技巧,结合TI/ST官方笔记,揭示了马鞍形波形的形成原理及常见误区。通过示波器实测案例,帮助电力电子工程师准确理解并应用这些关键概念,提升电机控制系统的调试效率。 阅读详情

相关推荐

扫地机的CPU只要二十多块?2024第二拆来了

昨天还说到这个机器人的故障,经小鱼拆机后测试和后台网友留言确认,不是防跌落问题,是轮子故障,这个轮子不会动,轮子上有一个限位开关检测机器人是否离开地面的,测试的时候也没有误触发,所以电机存在故障,后面拆电机的时候再检查。最后再留下一个疑问,这个机器人的回充没有用红外管,机器人是如何识别基站进行返回充电的(因为只买了本体,没买充电桩,不确定充电桩的形状,是不是利用点云识别不确定)懂的请留言。全志的R16,封装是 BGA282,那这个板子至少是4层板,小鱼盲猜 6 层板,知道的小伙伴欢迎留言。

生活不止眼前的苟且 1975

GNSS数据处理新手避坑:手把手教你用GAMP_GOOD下载IGS/MGEX数据(附.cfg文件详解)

本文详细介绍了如何使用GAMP_GOOD进行GNSS数据处理,从基础配置到高级参数调优,帮助新手避开常见错误。内容包括软件安装、配置文件详解、数据源选择、测站文件配置以及性能优化技巧,特别适合GNSS数据处理初学者快速上手。

weixin_30338481的博客 390

FOC控制必看:单/双/三电阻电流采样方案全对比(附NXP实战避坑指南)

本文深入对比了FOC控制中单电阻、双电阻和三电阻电流采样方案的优劣与适用场景,重点剖析了采样时序、窗口与ADC转换的工程挑战。针对NXP平台,提供了解决采样窗口过窄的实战方案与配置指南,帮助工程师根据成本与性能需求做出最优选择,并规避常见设计陷阱。

n2o3p4的博客 412

Android 14.0 系统设置显示主菜单添加屏幕旋转菜单实现旋转屏幕功能

在14.0的系统rom定制化开发中,在对系统设置进行定制开发中,有产品需求要求增加 旋转屏幕功能的菜单,就是在点击旋转屏幕菜单后弹窗显示旋转0度,旋转 90度,旋转180度, 旋转270度针对不同分辨率的无重力感应的大屏设备的屏幕旋转功能的实现, 接下来就来分析实现这个功能

安卓兼职framework和app工程师的博客 1309

OpenClaw安卓手机攻略

想在安卓手机上安装 OpenClaw,目前主要有两种主流方法:一种是使用专门的,操作简单直观;另一种是在命令行环境下进行,自由度更高。你可以根据自己的偏好和动手能力来选择。

suny8的专栏 2899

月薪30k+的工业视觉,必备Java+YOLO技能(工业级落地全拆解)

30k+工业视觉岗的核心不是算法调参,而是用Java把YOLO落地到工业场景的能力——稳运行、能对接、可管理是高薪的核心壁垒;必备技能分五层:模型工业级适配、Java推理核心、SpringBoot后端、工业部署运维、场景适配,每层都要练到“能落地、能讲清、能避坑”;学习路径的核心是“实战驱动”:不要只学理论,从一个完整的工业项目(如锂电缺陷检测)入手,练完就能对标高薪岗。

2601_94871597的博客 524

Orange3实战教程:转换---预处理

部件提供了多种预处理方法,这些方法可以在单个预处理流程中组合使用。某些方法也可作为独立部件提供,支持更高级的技术和参数调整。连接到测试与评分:在交叉验证的每个批次中应用预处理器,随后学习器的预处理器会作用于预处理后的子集。连接到学习器:覆盖学习器的默认预处理流程,仅应用自定义流程(各学习器的默认步骤详见其文档)。直接连接到原始数据并输出预处理后的数据集,可能导致模型过拟合。:从原始数据中随机选择固定数量或百分比的特征,主要用于高级测试或教学用途。的预处理器输入,同时传入数据和学习器(如。

err2008的专栏 147

【Bug已解决】claude: No such file or directory — Claude Code 命令凭空消失解决方案

方案适用场景推荐指数难度方案一:重建软链接所有平台,软链接断裂⭐⭐⭐⭐⭐低方案二:修复 shebangnvm 用户,不想重装⭐⭐⭐⭐中方案三:nvm default aliasnvm 用户,长期稳定⭐⭐⭐⭐低方案四:切换到 Volta频繁切换 Node.js 版本⭐⭐⭐中方案五:修复 PATHPATH 配置丢失⭐⭐⭐⭐低方案六:Homebrew 安装macOS 用户,npm 不稳定⭐⭐⭐⭐低根本原因与。

博客 1万+

深度学习工具包 DeepLearningToolbox

深度学习工具包Deprecation notice.-----This toolbox is outdated and no longer maintained.There are much better tools available for deep learning than this toolbox, e.g. [Theano](http://deeplearning.net/software/theano/), [torch](http://torch.ch/) or [tensorflow](http://www.tensorflow.org/)I would suggest you use one of the tools mentioned above rather than use this toolbox.Best, Rasmus.DeepLearnToolbox================A Matlab toolbox for Deep Learning.Deep Learning is a new subfield of machine learning that focuses on learning deep hierarchical models of data.It is inspired by the human brain's apparent deep (layered, hierarchical) architecture.A good overview of the theory of Deep Learning theory is[Learning Deep Architectures for AI](http://www.iro.umontreal.ca/~bengioy/papers/ftml_book.pdf)For a more informal introduction, see the following videos by Geoffrey Hinton and Andrew Ng.* [The Next Generation of Neural Networks](http://www.youtube.com/watch?v=AyzOUbkUf3M) (Hinton, 2007)* [Recent Developments in Deep Learning](http://www.youtube.com/watch?v=VdIURAu1-aU) (Hinton, 2010)* [Unsupervised Feature Learning and Deep Learning](http://www.youtube.com/watch?v=ZmNOAtZIgIk) (Ng, 2011)If you use this toolbox in your research please cite [Prediction as a candidate for learning deep hierarchical models of data](http://www2.imm.dtu.dk/pubdb/views/publication_details.php?id=6284)```@MASTERSTHESIS\{IMM2012-06284, author = "R. B. Palm", title = "Prediction as a candidate for learning deep hierarchical models of data", year = "2012",}```Contact: rasmusbergpalm at gmail dot comDirectories included in the toolbox-----------------------------------`NN/` - A library for Feedforward Backpropagation Neural Networks`CNN/` - A library for Convolutional Neural Networks`DBN/` - A library for Deep Belief Networks`SAE/` - A library for Stacked Auto-Encoders`CAE/` - A library for Convolutional Auto-Encoders`util/` - Utility functions used by the libraries`data/` - Data used by the examples`tests/` - unit tests to verify toolbox is workingFor references on each library check REFS.mdSetup-----1. Download.2. addpath(genpath('DeepLearnToolbox'));Example: Deep Belief Network---------------------```matlabfunction test_example_DBNload mnist_uint8;train_x = double(train_x) / 255;test_x = double(test_x) / 255;train_y = double(train_y);test_y = double(test_y);%% ex1 train a 100 hidden unit RBM and visualize its weightsrand('state',0)dbn.sizes = [100];opts.numepochs = 1;opts.batchsize = 100;opts.momentum = 0;opts.alpha = 1;dbn = dbnsetup(dbn, train_x, opts);dbn = dbntrain(dbn, train_x, opts);figure; visualize(dbn.rbm{1}.W'); % Visualize the RBM weights%% ex2 train a 100-100 hidden unit DBN and use its weights to initialize a NNrand('state',0)%train dbndbn.sizes = [100 100];opts.numepochs = 1;opts.batchsize = 100;opts.momentum = 0;opts.alpha = 1;dbn = dbnsetup(dbn, train_x, opts);dbn = dbntrain(dbn, train_x, opts);%unfold dbn to nnnn = dbnunfoldtonn(dbn, 10);nn.activation_function = 'sigm';%train nnopts.numepochs = 1;opts.batchsize = 100;nn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.10, 'Too big error');```Example: Stacked Auto-Encoders---------------------```matlabfunction test_example_SAEload mnist_uint8;train_x = double(train_x)/255;test_x = double(test_x)/255;train_y = double(train_y);test_y = double(test_y);%% ex1 train a 100 hidden unit SDAE and use it to initialize a FFNN% Setup and train a stacked denoising autoencoder (SDAE)rand('state',0)sae = saesetup([784 100]);sae.ae{1}.activation_function = 'sigm';sae.ae{1}.learningRate = 1;sae.ae{1}.inputZeroMaskedFraction = 0.5;opts.numepochs = 1;opts.batchsize = 100;sae = saetrain(sae, train_x, opts);visualize(sae.ae{1}.W{1}(:,2:end)')% Use the SDAE to initialize a FFNNnn = nnsetup([784 100 10]);nn.activation_function = 'sigm';nn.learningRate = 1;nn.W{1} = sae.ae{1}.W{1};% Train the FFNNopts.numepochs = 1;opts.batchsize = 100;nn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.16, 'Too big error');```Example: Convolutional Neural Nets---------------------```matlabfunction test_example_CNNload mnist_uint8;train_x = double(reshape(train_x',28,28,60000))/255;test_x = double(reshape(test_x',28,28,10000))/255;train_y = double(train_y');test_y = double(test_y');%% ex1 Train a 6c-2s-12c-2s Convolutional neural network %will run 1 epoch in about 200 second and get around 11% error. %With 100 epochs you'll get around 1.2% errorrand('state',0)cnn.layers = { struct('type', 'i') %input layer struct('type', 'c', 'outputmaps', 6, 'kernelsize', 5) %convolution layer struct('type', 's', 'scale', 2) %sub sampling layer struct('type', 'c', 'outputmaps', 12, 'kernelsize', 5) %convolution layer struct('type', 's', 'scale', 2) %subsampling layer};cnn = cnnsetup(cnn, train_x, train_y);opts.alpha = 1;opts.batchsize = 50;opts.numepochs = 1;cnn = cnntrain(cnn, train_x, train_y, opts);[er, bad] = cnntest(cnn, test_x, test_y);%plot mean squared errorfigure; plot(cnn.rL);assert(er<0.12, 'Too big error');```Example: Neural Networks---------------------```matlabfunction test_example_NNload mnist_uint8;train_x = double(train_x) / 255;test_x = double(test_x) / 255;train_y = double(train_y);test_y = double(test_y);% normalize[train_x, mu, sigma] = zscore(train_x);test_x = normalize(test_x, mu, sigma);%% ex1 vanilla neural netrand('state',0)nn = nnsetup([784 100 10]);opts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samples[nn, L] = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.08, 'Too big error');%% ex2 neural net with L2 weight decayrand('state',0)nn = nnsetup([784 100 10]);nn.weightPenaltyL2 = 1e-4; % L2 weight decayopts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex3 neural net with dropoutrand('state',0)nn = nnsetup([784 100 10]);nn.dropoutFraction = 0.5; % Dropout fraction opts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex4 neural net with sigmoid activation functionrand('state',0)nn = nnsetup([784 100 10]);nn.activation_function = 'sigm'; % Sigmoid activation functionnn.learningRate = 1; % Sigm require a lower learning rateopts.numepochs = 1; % Number of full sweeps through dataopts.batchsize = 100; % Take a mean gradient step over this many samplesnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex5 plotting functionalityrand('state',0)nn = nnsetup([784 20 10]);opts.numepochs = 5; % Number of full sweeps through datann.output = 'softmax'; % use softmax outputopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, train_x, train_y, opts);[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');%% ex6 neural net with sigmoid activation and plotting of validation and training error% split training data into training and validation datavx = train_x(1:10000,:);tx = train_x(10001:end,:);vy = train_y(1:10000,:);ty = train_y(10001:end,:);rand('state',0)nn = nnsetup([784 20 10]); nn.output = 'softmax'; % use softmax outputopts.numepochs = 5; % Number of full sweeps through dataopts.batchsize = 1000; % Take a mean gradient step over this many samplesopts.plot = 1; % enable plottingnn = nntrain(nn, tx, ty, opts, vx, vy); % nntrain takes validation set as last two arguments (optionally)[er, bad] = nntest(nn, test_x, test_y);assert(er < 0.1, 'Too big error');```[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/rasmusbergpalm/deeplearntoolbox/trend.png)](https://bitdeli.com/free "Bitdeli Badge")

Probability and Statistics - 4th edition

Probability and Statistics - 4th edition

LinePhone3.2.7(android端最新版本) sip客户端

SIP客户端For android:LinePhone3.2.7(最新版本),官网地址:http://www.linphone.org/

visio安装包

Microsoft Office Visio 是一款专业的制图软件。利用经过更新的形状、协作工具和数据链接图表,创建专业级图表以简化复杂的信息。

上一篇: 程序设计语言的关键特性
下一篇: CSS中的上边距属性及其编程应用
普通网友
博客等级 码龄3年 208粉丝 632原创
评论
成就一亿技术人!
拼手气红包6.0元
还能输入1000个字符  | 博主筛选后可见
 
 条评论被折叠 查看
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付:10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明:

1.余额是钱包充值的虚拟货币,按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载,可以购买VIP、付费专栏及课程。

余额充值