css如果选择的第一行的第一个th lujianwen 2012-04-14 11:50:25 css如果选择<table class="aaa">的第一行的第一个th ...全文 453 5 打赏 收藏 css如果选择<table class="aaa">的第一行的第一个th css如果选择的第一行的第一个th 复制链接 扫一扫 分享 转发到动态 举报 写回复 配置赞助广告取 消 确 定 用AI写文章 5 条回复 切换为时间正序 请发表友善的回复… 发表回复 打赏红包 需支付: 0.00 元 取 消 确 定 去圣西罗-为尤文喝彩 2012-04-16 打赏举报 回复 [Quote=引用 3 楼 的回复:] CSS 相邻选择符 和first-child 很多浏览器不支持的 [/Quote] 那就改jquery吧，百分比支持。 $('.aaa th:first').css(...); 要不直接在第一个th里加css规则。 <th style=""> pb160 2012-04-16 打赏举报 回复 设定class 然后选择！相邻选择符IE支持不好的！ wzhiyuan 2012-04-15 打赏举报 回复 CSS 相邻选择符 和first-child 很多浏览器不支持的 我爱小土豆 2012-04-15 打赏举报 回复 .aaa table>th 去圣西罗-为尤文喝彩 2012-04-14 打赏举报 回复 .aaa th:first-child nodejs-x64-0.10.21.tgz Node.js，简称Node，是一个开源且跨平台的JavaScript运行时环境，它允许在浏览器外运行JavaScript代码。Node.js于2009年由Ryan Dahl创立，旨在创建高性能的Web服务器和网络应用程序。它基于Google Chrome的V8 JavaScript引擎，可以在Windows、Linux、Unix、Mac OS X等操作系统上运行。 Node.js的特点之一是事件驱动和非阻塞I/O模型，这使得它非常适合处理大量并发连接，从而在构建实时应用程序如在线游戏、聊天应用以及实时通讯服务时表现卓越。此外，Node.js使用了模块化的架构，通过npm（Node package manager，Node包管理器）,社区成员可以共享和复用代码，极大地促进了Node.js生态系统的发展和扩张。 Node.js不仅用于服务器端开发。随着技术的发展，它也被用于构建工具链、开发桌面应用程序、物联网设备等。Node.js能够处理文件系统、操作数据库、处理网络请求等，因此，开发者可以用JavaScript编写全栈应用程序，这一点大大提高了开发效率和便捷性。 在实践中，许多大型企业和组织已经采用Node.js作为其Web应用程序的开发平台，如Netflix、PayPal和Walmart等。它们利用Node.js提高了应用性能，简化了开发流程，并且能更快地响应市场需求。 node-v4.1.1-linux-armv6l.tar.xz Node.js，简称Node，是一个开源且跨平台的JavaScript运行时环境，它允许在浏览器外运行JavaScript代码。Node.js于2009年由Ryan Dahl创立，旨在创建高性能的Web服务器和网络应用程序。它基于Google Chrome的V8 JavaScript引擎，可以在Windows、Linux、Unix、Mac OS X等操作系统上运行。 Node.js的特点之一是事件驱动和非阻塞I/O模型，这使得它非常适合处理大量并发连接，从而在构建实时应用程序如在线游戏、聊天应用以及实时通讯服务时表现卓越。此外，Node.js使用了模块化的架构，通过npm（Node package manager，Node包管理器）,社区成员可以共享和复用代码，极大地促进了Node.js生态系统的发展和扩张。 Node.js不仅用于服务器端开发。随着技术的发展，它也被用于构建工具链、开发桌面应用程序、物联网设备等。Node.js能够处理文件系统、操作数据库、处理网络请求等，因此，开发者可以用JavaScript编写全栈应用程序，这一点大大提高了开发效率和便捷性。 在实践中，许多大型企业和组织已经采用Node.js作为其Web应用程序的开发平台，如Netflix、PayPal和Walmart等。它们利用Node.js提高了应用性能，简化了开发流程，并且能更快地响应市场需求。 node-v4.1.0-linux-arm64.tar.xz Node.js，简称Node，是一个开源且跨平台的JavaScript运行时环境，它允许在浏览器外运行JavaScript代码。Node.js于2009年由Ryan Dahl创立，旨在创建高性能的Web服务器和网络应用程序。它基于Google Chrome的V8 JavaScript引擎，可以在Windows、Linux、Unix、Mac OS X等操作系统上运行。 Node.js的特点之一是事件驱动和非阻塞I/O模型，这使得它非常适合处理大量并发连接，从而在构建实时应用程序如在线游戏、聊天应用以及实时通讯服务时表现卓越。此外，Node.js使用了模块化的架构，通过npm（Node package manager，Node包管理器）,社区成员可以共享和复用代码，极大地促进了Node.js生态系统的发展和扩张。 Node.js不仅用于服务器端开发。随着技术的发展，它也被用于构建工具链、开发桌面应用程序、物联网设备等。Node.js能够处理文件系统、操作数据库、处理网络请求等，因此，开发者可以用JavaScript编写全栈应用程序，这一点大大提高了开发效率和便捷性。 在实践中，许多大型企业和组织已经采用Node.js作为其Web应用程序的开发平台，如Netflix、PayPal和Walmart等。它们利用Node.js提高了应用性能，简化了开发流程，并且能更快地响应市场需求。 matlab S-Function 混合系统仿真 matlab绘制函数图像 MATLAB (Matrix Laboratory) 是一种用于数值计算的高级编程语言和交互式环境，由 MathWorks 公司开发。它广泛用于算法开发、数据可视化、数据分析以及数值计算的高级技术计算语言和交互式环境。以下是一些 MATLAB 的基本特性和使用方式： 1. 基本语法 变量：MATLAB 中的变量不需要预先声明，直接赋值即可。 数组：MATLAB 使用方括号 [] 创建数组，数组索引从 1 开始。 运算符：包括加、减、乘、除、乘方等。 函数：MATLAB 有大量内置函数，也可以编写自定义函数。 2. 绘图 MATLAB 提供了丰富的绘图功能，如绘制线图、散点图、柱状图、饼图等。 matlab x = 0:0.01:2*pi; y = sin(x); plot(x, y); title('Sine Function'); xlabel('x'); ylabel('y'); 3. 数据分析 MATLAB 可以处理各种类型的数据，包括矩阵、向量、数组等，并提供了许多数据分析函数，如统计函数、信号处理函数等。 4. 脚本和函数 智慧交通规划方案.pptx 智慧交通规划方案.pptx CSS 61,115 社区成员 60,728 社区内容 发帖 与我相关 我的任务 CSS 层叠样式表(英文全称：Cascading Style Sheets)是一种用来表现HTML（标准通用标记语言的一个应用）或XML（标准通用标记语言的一个子集）等文件样式的计算机语言。 复制链接 扫一扫 分享 确定 社区描述 层叠样式表(英文全称：Cascading Style Sheets)是一种用来表现HTML（标准通用标记语言的一个应用）或XML（标准通用标记语言的一个子集）等文件样式的计算机语言。 社区管理员 加入社区 获取链接或二维码 近7日 近30日 至今 加载中 查看更多榜单 社区公告 暂无公告 试试用AI创作助手写篇文章吧 + 用AI写文章 window.__INITIAL_STATE__= {"csrf":"67BESl63-lrv7plWGdau10XKO9i-9eA67ago","origin":"http:\u002F\u002Fbbs.csdn.net","isMobile":false,"cookie":"uuid_tt_dd=10_8734331100-1715547172076-353936; uuid_tt_dd=10_8734331100-1715547172076-353936; dc_session_id=10_1715547172076.172295; dc_sid=8e2bcb2d691918f5f6e124ff80edbd24; __cf_bm=nC9Pom6Sd3fTFNkECzWPHwiFhcfXNUW4zc7P4jgO3U8-1715547159-1.0.1.1-ee4VgypPRkcbD7dM2kZXRsN210MvAM_MJi8NVD11JiWSWkDWuUj_TbS0L0d0o9qfhzO19WFndJdEdgF3XunJvg; 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class=\"aaa\"\u003E的第一行的第一个th","isLive":false,"contentType":{"text":"text","picture":"picture","link":"link","video":"video","vote":"vote","live":"live","blog":"blog","long_text":"long_text","task_text":"task_text"},"liveUrl":"https:\u002F\u002Flive.csdn.net\u002Froom\u002Fiframe\u002F","spmExtra":{"id":126,"topicId":390004770},"keywords":"","description":"以下内容是CSDN社区关于css如果选择\u003Ctable class=\"aaa\"\u003E的第一行的第一个th相关内容，如果想了解更多关于CSS社区其他内容，请访问CSDN社区。"}; window.csdn.sideToolbar = { options: { qr: { isShow: true, data: [ { imgSrc: 'https://csdnimg.cn/release/cmsfe/public/img/ewm.9010d6e5.png', desc: "关注公众号" }, ] }, help: { isShow: false, }, contentEl: document.getElementsByClassName("cloud-maintainer")[0] }, };

[lujianwen]

css如果选择<table class="aaa">的第一行的第一个th

[去圣西罗-为尤文喝彩]

.aaa th:first-child

[我爱小土豆]

.aaa table>th

[wzhiyuan]

CSS 相邻选择符 和first-child 很多浏览器不支持的

[pb160]

设定class 然后选择！相邻选择符IE支持不好的！

[去圣西罗-为尤文喝彩]

[Quote=引用 3 楼 的回复:]
CSS 相邻选择符 和first-child 很多浏览器不支持的
[/Quote]
那就改jquery吧，百分比支持。

$('.aaa th:first').css(...);

要不直接在第一个th里加css规则。
<th style="">