...<\/body><\/pre>\n

除了這些基本標(biāo)簽之外,其他幾個(gè)元素可以幫助添加內(nèi)容以創(chuàng)建一個(gè)出色的網(wǎng)站。這些是-<\/p>\n

標(biāo)題:<\/strong>標(biāo)題(H1、H2、H3 等)有助于構(gòu)建內(nèi)容并提供信息的層次結(jié)構(gòu)。<\/p>\n

語(yǔ)法:<\/strong><\/p>\n

Main Heading<\/h1><\/pre>\n

段落:<\/strong>段落 (

) 有助于定義文本塊。<\/p>\n

語(yǔ)法:<\/strong><\/p>\n

Hello World<\/p><\/pre>\n

鏈接:<\/strong>鏈接 () 允許用戶導(dǎo)航到其他網(wǎng)頁(yè)或其他資源。<\/p>\n

語(yǔ)法:<\/strong><\/p>\n

Link to EDUCBA website<\/a><\/pre>\n

Images: <\/strong>Images () can provide visual content in a document.<\/p>\n

Syntax:<\/strong><\/p>\n

\"Image<\/pre>\n

Code:<\/strong><\/p>\n

\n\n\nEDUCBA’s Page<\/title>\n<\/head>\n<body>
<h1><a href="http://m.miracleart.cn/">国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂</a></h1>\n<p> Hello World! This is EDUCBA’s first web page. <\/p>\n<\/body>\n<\/html><\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543755998731.png\" alt=\"什么是 HTML?\" ><\/p>\n<h3>How to Create an HTML Table?<\/h3>\n<p>There are specific table tags to create a table – mainly, <table>, <th>, <tr>, and <td><strong>. <\/strong><\/p>\n<h4>Pre-requisites for HTML Table<\/h4>\n<p>For an absolute beginner, it is essential to know what the different table tags do before writing a basic code.<\/p>\n<ul>\n<li>\n<strong><table>: <\/strong>Defines a table<\/li>\n<li>\n<strong><tr>:<\/strong> Defines a table row<\/li>\n<li>\n<strong><th>: <\/strong>Defines a table header cell<\/li>\n<li>\n<strong><td>: <\/strong>Defines a table data cell<\/li>\n<\/ul>\n<h3>Student Details Table<\/h3>\n<p>John has to create a webpage showing the names of students in a class along with their marks in mathematics and science. He draws the following table.<\/p>\n<table width=\"624\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"208\"><strong>Name<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"208\"><strong>Mathematics<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"208\"><strong>Science<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"208\">Mary<\/td>\n<td width=\"208\">78<\/td>\n<td width=\"208\">92<\/td>\n<\/tr>\n<tr>\n<td width=\"208\">Susan<\/td>\n<td width=\"208\">98<\/td>\n<td width=\"208\">84<\/td>\n<\/tr>\n<tr>\n<td width=\"208\">Amy<\/td>\n<td width=\"208\">63<\/td>\n<td width=\"208\">79<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Now, John wants to write the code to transform this table into an HTML table on a webpage. The steps-<\/p>\n<p><strong>Step #1: <\/strong>Open an HTML code editor. This tutorial demonstrates how to write code in Visual Studio Code. If the PC doesn’t have VS Code, one can download it here.<\/p>\n<p><strong>Step #2: <\/strong>Select File > New Text File.<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756191600.png\" alt=\"什么是 HTML?\" ><\/p>\n<p><strong>Step #3: <\/strong>Click on “Select a language” and then type HTML in the text box. Choose the HTML option to create a new HTML file.<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756316296.png\" alt=\"什么是 HTML?\" ><\/p>\n\n\n<p><strong>Step #4:<\/strong> Again, go to File > Save As and save the file with the filename.html format.<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756467690.png\" alt=\"什么是 HTML?\" ><\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543756923275.png\" alt=\"什么是 HTML?\" ><\/p>\n<p><strong>Step #5: <\/strong>Add the basic code, i.e., HTML template of doctype declaration, HTML tag, head tag, title tag, and body tag, as shown below. Set the title as Student Details.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><!DOCTYPE html>\n<html>\n<head>\n<title>Student Details<\/title>\n<\/head>\n<body>\n<\/body>\n<\/html><\/pre>\n<p><strong>Output:<\/strong><\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543757171682.png\" alt=\"什么是 HTML?\" ><\/p>\n<p>Opening the file should show the following blank web page. Note the title in the browser tab has changed to “Student Details.”<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543757391499.png\" alt=\"什么是 HTML?\" ><\/p>\n<p><strong>Step #6: <\/strong>Now, define the table using the <table> tag inside the body tag. Define the first row using the <tr> tag, and add 3 headings cells – Name, Mathematics, and Science, using the <th> tag. Don’t forget to close the tags with a corresponding closing tag.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><table>\n<tr>\n<th>Name<\/th>\n<th>Mathematics<\/th>\n<th>Science<\/th>\n<\/tr>\n<\/table><\/pre>\n<p>Save the file and refresh the webpage to see the updated output:<\/p>\n<p><img  src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/172543757512582.png\" alt=\"什么是 HTML?\" ><\/p>\n<p><strong>Step #7: <\/strong>Add the student details by defining a row for each student using <tr> tag, and adding the data in each cell using <td> tag. Close the table with the <\/table> tag.<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><tr>\n<td>Mary<\/td>\n<td>78<\/td>\n<td>92<\/td>\n<\/tr>\n<tr>\n<td>Susan<\/td>\n<td>98<\/td>\n<td>84<\/td>\n<\/tr>\n<tr>\n<td>Amy<\/td>\n<td>63<\/td>\n<td>79<\/td>\n<\/tr><\/pre>\n<p>Once again, save and refresh the webpage to see the final output:<\/p>\n<p><strong>Code:<\/strong><\/p>\n<pre><!DOCTYPE html>\n<html>\n<head>\n<title>Student Details<\/title>\n<\/head>\n<body>\n<table>\n<tr>\n<th>Name<\/th>\n<th>Mathematics<\/th>\n<th>Science<\/th>\n<\/tr>\n<tr>\n<td>Mary<\/td>\n<td>78<\/td>\n<td>92<\/td>\n<\/tr>\n<tr>\n<td>Susan<\/td>\n<td>98<\/td>\n<td>84<\/td>\n<\/tr>\n<tr>\n<td>Amy<\/td>\n<td>63<\/td>\n<td>79<\/td>\n<\/tr>\n<\/table>\n<\/body>\n<\/html><\/pre>\n<h3>Applications of HTML<\/h3>\n<table width=\"691\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"271\"><strong>Application<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"420\"><strong>How Does HTML Help?<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Web pages<\/strong><\/td>\n<td width=\"420\">To create web pages, provide the structure and content for displaying information in a web browser.\n\n\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>E-commerce<\/strong><\/td>\n<td width=\"420\">To create online stores, product catalogs, and shopping carts, allowing customers to purchase products and services online.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Landing pages<\/strong><\/td>\n<td width=\"420\">To develop compelling landing pages for websites that capture a visitor’s attention and encourage them to take a specific action.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Newsletters<\/strong><\/td>\n<td width=\"420\">It allows the creation of interactive and visually appealing newsletters, such as corporate newsletters, that deliver to subscribers via email.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Online portfolios<\/strong><\/td>\n<td width=\"420\">To create online portfolios for artists, photographers, and other creatives, showcasing their work and skills to potential clients and employers.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Blogs<\/strong><\/td>\n<td width=\"420\">One can create blogs, which are personal websites that provide a platform for writing and publishing articles and other content.<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Documentation<\/strong><\/td>\n<td width=\"420\">It helps to create documentation and help files, providing information and guidance to users of the software and other products.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Advertisements<\/strong><\/td>\n<td width=\"420\">It can help make advertisements embedded on websites and social media platforms, promoting products and services to a wide audience.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"271\"><strong>Forms<\/strong><\/td>\n<td width=\"420\">To create a form, one can use <form> elements.\n<p>?<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Advantages and Disadvantages<\/h3>\n<table style=\"height: 471px;\" width=\"685\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"301\"><strong>Pros<\/strong><\/td>\n<td style=\"text-align: center;\" width=\"299\"><strong>Cons<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Open Standard:<\/strong> It is free of cost and readily available.<\/td>\n<td width=\"299\">\n<strong>Limited Functionality: <\/strong>It cannot perform complex tasks like calculations or data storage.<\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Easy to Learn:<\/strong> HTML tags are basic and in a readable format, enclosed in angle brackets. It’s easy to learn and use, even for non-programmers.<\/td>\n<td width=\"299\">\n<strong>Poor Security: <\/strong>It is vulnerable to security threats such as cross-site scripting (XSS) and SQL injection.<\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Search Engine Friendly: <\/strong>Search engines can easily crawl and index the content of the pages.<\/td>\n<td width=\"299\">\n<strong>Inconsistent Browsers: <\/strong>Different browsers render HTML differently, leading to an inconsistent display of web pages on different browsers.<\/td>\n<\/tr>\n<tr>\n<td width=\"301\">\n<strong>Community Support: <\/strong>It has large community support and many online resources available for learning and troubleshooting.<\/td>\n<td width=\"299\">\n<strong>Poor Design Flexibility:<\/strong> It provides limited design options and creates static websites, making it difficult to create visually appealing dynamic websites without integrating CSS and JavaScript.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Final Thoughts<\/h3>\n<p>In conclusion, Hypertext Markup Language is a cornerstone of the World Wide Web. It provides a standardized way of defining the structure and content of a web page using a combination of tags and attributes. With HTML, one can create simple text-based web pages or complex, multimedia-rich applications. It is easy to learn and widely used, making it an essential skill for anyone interested in web development.<\/p>\n<h3>FAQs<\/h3>\n<h4>Q1. How to convert an HTML to PDF?<\/h4>\n<p><strong>Answer: <\/strong>To convert, use a library or online service that supports HTML to PDF conversion.<\/p>\n<h4>Q2. How to add an image in HTML?<\/h4>\n<p><strong>Answer: <\/strong>To add an image, use the <img> tag with the src attribute pointing to the image file’s URL or local path. Example:<\/p>\n<pre><img src=\"image.jpg\" alt=\"Alt text\"><\/pre>\n<h4>Q3. Is HTML a programming language? What is the HTML used for?<\/h4>\n<p><strong>Answer:<\/strong> Hypertext Markup Language is not a programming language, it is a markup language used for creating web pages and other information displayed in a web browser. HTML defines the structure and content of a web page using a set of markup tags.<\/p>\n<h4>Q4. How to add a video in HTML?<\/h4>\n<p><strong>Answer: <\/strong>To add a video, use the <video> tag with the src attribute pointing to the video file’s URL or local path. Example:<\/p>\n<pre><video src=\"video.mp4\"><\/video><\/pre>\n<p>One can also add controls to play, pause, and adjust volume with the controls attribute:<\/p>\n<pre><video src=\"video.mp4\" controls><\/video><\/pre>\n<h4>Q5. Is HTML case-sensitive?<\/h4>\n<p><strong>Answer: <\/strong>No, elements are not case-sensitive. However, as best practice, it’s good to follow the same casing in all tags or elements to improve code readability.<\/p>\n<h4>Q6. How many tags are in HTML?<\/h4>\n<p><strong>Answer: <\/strong>There are over 140 tags specified in the HTML5 standard, but some of them have become obsolete and are not widely used. Commonly used tags include headings, paragraphs, links, images, lists, tables, forms, and multimedia elements like audio and video.<\/p>\n<h4>Q7. What is HTML doctype?<\/h4>\n<p><strong>Answer: <\/strong>The first line of a document is the doctype or document type declaration, which defines the version of the HTML used. Example:<\/p>\n<pre><!DOCTYPE html><\/pre>\n<h4>?Q8. What is an HTML header?<\/h4>\n<p><strong>Answer: <\/strong>The HTML <header> tag defines a header section in a document. This section typically contains information such as the page title, logo, and navigation menu. The header section is usually displayed at the top of the page, and its content is typically shared across multiple pages of a website. The header tag helps to define the structure and hierarchy of a web page and makes it easier to create a consistent look and feel across multiple pages.<\/p>"}	</script>
	
<meta http-equiv="Cache-Control" content="no-transform" />
<meta http-equiv="Cache-Control" content="no-siteapp" />
<script>var V_PATH="/";window.onerror=function(){ return true; };</script>
</head>

<body data-commit-time="2023-12-28T14:50:12+08:00" class="editor_body body2_2">
	<link rel="stylesheet" type="text/css" href="/static/csshw/stylehw.css">
<header>
    <div   id="377j5v51b"   class="head">
        <div   id="377j5v51b"   class="haed_left">
            <div   id="377j5v51b"   class="haed_logo">
                <a href="http://m.miracleart.cn/zh/" title="" class="haed_logo_a">
                    <img src="/static/imghw/logo.png" alt="" class="haed_logoimg">
                </a>
            </div>
            <div   id="377j5v51b"   class="head_nav">
                <div   id="377j5v51b"   class="head_navs">
                    <a href="javascript:;" title="社區(qū)" class="head_nava head_nava-template1">社區(qū)</a>
                    <div   class="377j5v51b"   id="dropdown-template1" style="display: none;">
                        <div   id="377j5v51b"   class="languagechoose">
                            <a href="http://m.miracleart.cn/zh/article.html" title="文章" class="languagechoosea on">文章</a>
                            <a href="http://m.miracleart.cn/zh/faq/zt" title="合集" class="languagechoosea">合集</a>
                            <a href="http://m.miracleart.cn/zh/wenda.html" title="問(wèn)答" class="languagechoosea">問(wèn)答</a>
                        </div>
                    </div>
                </div>

                <div   id="377j5v51b"   class="head_navs">
                    <a href="javascript:;" title="學(xué)習(xí)" class="head_nava head_nava-template1_1">學(xué)習(xí)</a>
                    <div   class="377j5v51b"   id="dropdown-template1_1" style="display: none;">
                        <div   id="377j5v51b"   class="languagechoose">
                            <a href="http://m.miracleart.cn/zh/course.html" title="課程" class="languagechoosea on">課程</a>
                            <a href="http://m.miracleart.cn/zh/dic/" title="編程詞典" class="languagechoosea">編程詞典</a>
                        </div>
                    </div>
                </div>

                <div   id="377j5v51b"   class="head_navs">
                    <a href="javascript:;" title="工具庫(kù)" class="head_nava head_nava-template1_2">工具庫(kù)</a>
                    <div   class="377j5v51b"   id="dropdown-template1_2" style="display: none;">
                        <div   id="377j5v51b"   class="languagechoose">
                            <a href="http://m.miracleart.cn/zh/toolset/development-tools" title="開(kāi)發(fā)工具" class="languagechoosea on">開(kāi)發(fā)工具</a>
                            <a href="http://m.miracleart.cn/zh/toolset/website-source-code" title="網(wǎng)站源碼" class="languagechoosea">網(wǎng)站源碼</a>
                            <a href="http://m.miracleart.cn/zh/toolset/php-libraries" title="PHP 庫(kù)" class="languagechoosea">PHP 庫(kù)</a>
                            <a href="http://m.miracleart.cn/zh/toolset/js-special-effects" title="JS特效" class="languagechoosea on">JS特效</a>
                            <a href="http://m.miracleart.cn/zh/toolset/website-materials" title="網(wǎng)站素材" class="languagechoosea on">網(wǎng)站素材</a>
                            <a href="http://m.miracleart.cn/zh/toolset/extension-plug-ins" title="擴(kuò)展插件" class="languagechoosea on">擴(kuò)展插件</a>
                        </div>
                    </div>
                </div>

                <div   id="377j5v51b"   class="head_navs">
                    <a href="http://m.miracleart.cn/zh/ai" title="AI工具" class="head_nava head_nava-template1_3">AI工具</a>
                </div>

                <div   id="377j5v51b"   class="head_navs">
                    <a href="javascript:;" title="休閑" class="head_nava head_nava-template1_3">休閑</a>
                    <div   class="377j5v51b"   id="dropdown-template1_3" style="display: none;">
                        <div   id="377j5v51b"   class="languagechoose">
                            <a href="http://m.miracleart.cn/zh/game" title="游戲下載" class="languagechoosea on">游戲下載</a>
                            <a href="http://m.miracleart.cn/zh/mobile-game-tutorial/" title="游戲教程" class="languagechoosea">游戲教程</a>

                        </div>
                    </div>
                </div>
            </div>
        </div>
                    <div   id="377j5v51b"   class="head_search">
                <input id="key_words"  onkeydown="if (event.keyCode == 13) searchs('zh')" class="search-input" type="text" autocomplete="off" name="keywords" required="required" placeholder="Block,address,transaction,news" value="">
                <a href="javascript:;" title="搜索"  onclick="searchs('zh')"><img src="/static/imghw/find.png" alt="搜索"></a>
            </div>
                <div   id="377j5v51b"   class="head_right">
            <div   id="377j5v51b"   class="haed_language">
                <a href="javascript:;" class="layui-btn haed_language_btn">簡(jiǎn)體中文<i class="layui-icon layui-icon-triangle-d"></i></a>
                <div   class="377j5v51b"   id="dropdown-template" style="display: none;">
                    <div   id="377j5v51b"   class="languagechoose">
                                                <a href="javascript:;" title="簡(jiǎn)體中文" class="languagechoosea">簡(jiǎn)體中文</a>
                                                <a href="javascript:setlang('en');" title="English" class="languagechoosea">English</a>
                                                <a href="javascript:setlang('zh-tw');" title="繁體中文" class="languagechoosea">繁體中文</a>
                                                <a href="javascript:setlang('ja');" title="日本語(yǔ)" class="languagechoosea">日本語(yǔ)</a>
                                                <a href="javascript:setlang('ko');" title="???" class="languagechoosea">???</a>
                                                <a href="javascript:setlang('ms');" title="Melayu" class="languagechoosea">Melayu</a>
                                                <a href="javascript:setlang('fr');" title="Fran?ais" class="languagechoosea">Fran?ais</a>
                                                <a href="javascript:setlang('de');" title="Deutsch" class="languagechoosea">Deutsch</a>
                                            </div>
                </div>
            </div>
            <span id="377j5v51b"    class="head_right_line"></span>
                            <div style="display: block;" id="login" class="haed_login ">
                    <a href="javascript:;"  title="Login" class="haed_logina ">Login</a>
                </div>
                <div style="display: block;" id="reg" class="head_signup login">
                    <a href="javascript:;"  title="singup" class="head_signupa">singup</a>
                </div>
            
        </div>
    </div>
</header>

	
	<main>
		<div   id="377j5v51b"   class="Article_Details_main">
			<div   id="377j5v51b"   class="Article_Details_main1">
							<div   id="377j5v51b"   class="Article_Details_main1L">
					<div   id="377j5v51b"   class="Article_Details_main1Lmain" id="Article_Details_main1Lmain">
						<div   id="377j5v51b"   class="Article_Details_main1L1">目錄</div>
						<div   id="377j5v51b"   class="Article_Details_main1L2" id="Article_Details_main1L2">
							<!-- 左側(cè)懸浮,文章定位標(biāo)題1 id="Article_Details_main1L2s_1"-->
															<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#要點(diǎn)" title="要點(diǎn)" >要點(diǎn)</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#HTML-子集" title="HTML 子集" >HTML 子集</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#XHTML-可擴(kuò)展超文本標(biāo)記語(yǔ)言" title="1. XHTML(可擴(kuò)展超文本標(biāo)記語(yǔ)言)" >1. XHTML(可擴(kuò)展超文本標(biāo)記語(yǔ)言)</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#SGML-標(biāo)準(zhǔn)通用標(biāo)記語(yǔ)言" title="2. SGML(標(biāo)準(zhǔn)通用標(biāo)記語(yǔ)言)" >2. SGML(標(biāo)準(zhǔn)通用標(biāo)記語(yǔ)言)</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#DHTML-動(dòng)態(tài)-HTML" title="3. DHTML(動(dòng)態(tài) HTML)" >3. DHTML(動(dòng)態(tài) HTML)</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#TTML-定時(shí)文本標(biāo)記語(yǔ)言" title="4. TTML2(定時(shí)文本標(biāo)記語(yǔ)言 2)" >4. TTML2(定時(shí)文本標(biāo)記語(yǔ)言 2)</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#HTML-模板" title="HTML 模板" >HTML 模板</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#How-to-Create-an-HTML-Table" title="How to Create an HTML Table?" >How to Create an HTML Table?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Pre-requisites-for-HTML-Table" title="Pre-requisites for HTML Table" >Pre-requisites for HTML Table</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Student-Details-Table" title="Student Details Table" >Student Details Table</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Applications-of-HTML" title="Applications of HTML" >Applications of HTML</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Advantages-and-Disadvantages" title="Advantages and Disadvantages" >Advantages and Disadvantages</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Final-Thoughts" title="Final Thoughts" >Final Thoughts</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#FAQs" title="FAQs" >FAQs</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-How-to-convert-an-HTML-to-PDF" title="Q1. How to convert an HTML to PDF?" >Q1. How to convert an HTML to PDF?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-How-to-add-an-image-in-HTML" title="Q2. How to add an image in HTML?" >Q2. How to add an image in HTML?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-Is-HTML-a-programming-language-What-is-the-HTML-used-for" title="Q3. Is HTML a programming language? What is the HTML used for?" >Q3. Is HTML a programming language? What is the HTML used for?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-How-to-add-a-video-in-HTML" title="Q4. How to add a video in HTML?" >Q4. How to add a video in HTML?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-Is-HTML-case-sensitive" title="Q5. Is HTML case-sensitive?" >Q5. Is HTML case-sensitive?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-How-many-tags-are-in-HTML" title="Q6. How many tags are in HTML?" >Q6. How many tags are in HTML?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-What-is-HTML-doctype" title="Q7. What is HTML doctype?" >Q7. What is HTML doctype?</a>
								</div>
																<div   id="377j5v51b"   class="Article_Details_main1L2s ">
									<a href="#Q-What-is-an-HTML-header" title="?Q8. What is an HTML header?" >?Q8. What is an HTML header?</a>
								</div>
														</div>
					</div>
				</div>
							<div   id="377j5v51b"   class="Article_Details_main1M">
					<div   id="377j5v51b"   class="phpgenera_Details_mainL1">
						<a href="http://m.miracleart.cn/zh/" title="首頁(yè)"
							class="phpgenera_Details_mainL1a">首頁(yè)</a>
						<img src="/static/imghw/top_right.png" alt="" />
												<a href="http://m.miracleart.cn/zh/web-designer.html"
							class="phpgenera_Details_mainL1a">web前端</a>
						<img src="/static/imghw/top_right.png" alt="" />
												<a href="http://m.miracleart.cn/zh/div-tutorial.html"
							class="phpgenera_Details_mainL1a">html教程</a>
						<img src="/static/imghw/top_right.png" alt="" />
						<span>什么是 HTML?</span>
					</div>
					
					<div   id="377j5v51b"   class="Articlelist_txts">
						<div   id="377j5v51b"   class="Articlelist_txts_info">
							<h1 class="Articlelist_txts_title">什么是 HTML?</h1>
							<div   id="377j5v51b"   class="Articlelist_txts_info_head">
								<div   id="377j5v51b"   class="author_info">
									<a href="http://m.miracleart.cn/zh/member/887227.html"  class="author_avatar">
									<img class="lazy"  data-src="https://img.php.cn/upload/avatar/000/887/227/63bb7851c9547215.jpg" src="/static/imghw/default1.png" alt="WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB">
									</a>
									<div   id="377j5v51b"   class="author_detail">
																			<a href="http://m.miracleart.cn/zh/member/887227.html" class="author_name">WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB</a>
                                										</div>
								</div>
                			</div>
							<span id="377j5v51b"    class="Articlelist_txts_time">Sep 04, 2024 pm	 04:12 PM</span>
															<div   id="377j5v51b"   class="Articlelist_txts_infos">
																			<span id="377j5v51b"    class="Articlelist_txts_infoss on">html</span>
																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">html5</span>
																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">HTML Tutorial</span>
																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">HTML Properties</span>
																			<span id="377j5v51b"    class="Articlelist_txts_infoss ">HTML tags</span>
																	</div>
														
						</div>
					</div>
					<hr />
					<div   id="377j5v51b"   class="article_main php-article">
						<div   id="377j5v51b"   class="article-list-left detail-content-wrap content">
						<ins class="adsbygoogle"
							style="display:block; text-align:center;"
							data-ad-layout="in-article"
							data-ad-format="fluid"
							data-ad-client="ca-pub-5902227090019525"
							data-ad-slot="3461856641">
						</ins>
						

					<blockquote><p><em>超文本標(biāo)記語(yǔ)言(HTML)是一種允許創(chuàng)建任何連接到互聯(lián)網(wǎng)的人都可以查看的網(wǎng)站的語(yǔ)言。?根據(jù)一項(xiàng)調(diào)查,超過(guò) 55% 的受訪者表示他們使用 HTML。</em></p></blockquote>
<p>此外,學(xué)習(xí) HTML 通常是任何 Web 開(kāi)發(fā)人員旅程的第一步。 Web 開(kāi)發(fā)人員的平均年收入為 61,718 美元,頂級(jí)開(kāi)發(fā)人員的年收入突破了 103,000 美元大關(guān)。</p>
<p>超文本是一種通過(guò)單擊稱為超鏈接的文本進(jìn)入下一頁(yè)的上網(wǎng)方式。</p>
<p><img  src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/172543755222677.jpg" class="lazy" alt="什么是 HTML?" ></p>













<h3 id="要點(diǎn)">要點(diǎn)</h3>
<ul>
<li>基本代碼由 doctype 聲明、HTML 標(biāo)簽、head 標(biāo)簽、title 標(biāo)簽和 body 標(biāo)簽組成。</li>
<li>它可以在任何操作系統(tǒng)(例如 Windows、Mac 和 Linux)以及任何瀏覽器(例如 Google Chrome、Mozilla Firefox 和 Safari)上運(yùn)行。</li>
<li>它還有各種應(yīng)用程序,例如創(chuàng)建個(gè)人博客、詳細(xì)信息表、注冊(cè)表、登陸頁(yè)面、新聞通訊和在線作品集。</li>
<li>優(yōu)點(diǎn)是它是一個(gè)開(kāi)放標(biāo)準(zhǔn),易于學(xué)習(xí),適合初學(xué)者,具有良好的社區(qū)支持,并且對(duì)搜索引擎友好。</li>
<li>缺點(diǎn)包括安全性差、缺乏設(shè)計(jì)靈活性、在各種瀏覽器上輸出不一致以及功能有限。</li>
</ul>
<h3 id="HTML-子集">HTML 子集</h3>
<h4 id="XHTML-可擴(kuò)展超文本標(biāo)記語(yǔ)言">1. XHTML(可擴(kuò)展超文本標(biāo)記語(yǔ)言)</h4>
<ul>
<li>XHTML 是一種基于 XML 的標(biāo)記語(yǔ)言,這意味著它遵循嚴(yán)格的語(yǔ)法和語(yǔ)義規(guī)則。</li>
<li>XHTML 是 HTML 4 的繼承者,旨在使該語(yǔ)言更加模塊化和可擴(kuò)展。</li>
<li>XHTML 文檔必須格式正確且有效,這使得它們更難以創(chuàng)建,并且更加一致且可供更廣泛的設(shè)備訪問(wèn)。</li>
</ul>
<h4 id="SGML-標(biāo)準(zhǔn)通用標(biāo)記語(yǔ)言">2. SGML(標(biāo)準(zhǔn)通用標(biāo)記語(yǔ)言)</h4>
<ul>
<li>SGML 是一種用于定義標(biāo)記語(yǔ)言的元語(yǔ)言,包括 HTML。</li>
<li>SGML 提供了描述文檔結(jié)構(gòu)和內(nèi)容的標(biāo)準(zhǔn)語(yǔ)法,使其對(duì)于在不同系統(tǒng)之間交換信息非常有用。</li>
<li>SGML 是一個(gè)復(fù)雜而強(qiáng)大的系統(tǒng),但其語(yǔ)法和復(fù)雜性使其不如 HTML 等簡(jiǎn)單標(biāo)記語(yǔ)言得到廣泛使用。</li>
</ul>
<h4 id="DHTML-動(dòng)態(tài)-HTML">3. DHTML(動(dòng)態(tài) HTML)</h4>
<ul>
<li>DHTML 是指使用 HTML、CSS 和 JavaScript 創(chuàng)建動(dòng)態(tài)、交互式網(wǎng)頁(yè)。</li>
<li>DHTML 允許操作網(wǎng)頁(yè)的內(nèi)容、布局和行為以響應(yīng)用戶操作,而無(wú)需刷新頁(yè)面。</li>
<li>DHTML 廣泛用于創(chuàng)建動(dòng)態(tài)效果,例如下拉菜單、工具提示和幻燈片放映。</li>
<li>它還可以創(chuàng)建簡(jiǎn)單的動(dòng)畫(huà)和游戲。</li>
</ul>
<h4 id="TTML-定時(shí)文本標(biāo)記語(yǔ)言">4. TTML2(定時(shí)文本標(biāo)記語(yǔ)言 2)</h4>
<ul>
<li>TTML2 是一種標(biāo)記語(yǔ)言,用于以標(biāo)準(zhǔn)化方式表示定時(shí)文本內(nèi)容,例如字幕和副標(biāo)題。</li>
<li>TTML2 提供了一套全面的功能,用于設(shè)置定時(shí)文本的格式和樣式,包括對(duì)多種語(yǔ)言和字體樣式的支持。</li>
<li>TTML2 是確保聾啞和聽(tīng)力障礙用戶可訪問(wèn)多媒體內(nèi)容以及提高所有用戶視頻內(nèi)容可用性的重要工具。</li>
</ul>
<h3 id="HTML-模板">HTML 模板</h3>
<p>每個(gè) HTML 頁(yè)面都有一個(gè)基本模板。它由以下部分組成:</p>
<p><strong>文檔類型聲明:</strong>HTML 文檔的第一行是 doctype 或文檔類型聲明,它定義了所使用的 HTML 版本。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><!DOCTYPE html></pre>
<p><strong>Element</strong>:該元素是 HTML 文檔的根元素,包含所有其他元素。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><html>...</html></pre>
<p><strong>Head 元素:</strong>head 元素包含有關(guān)文檔的信息,例如標(biāo)題、元數(shù)據(jù)以及指向外部資源(例如樣式表)的鏈接。</p>
<p><strong>語(yǔ)法:</strong></p>


<pre class="brush:php;toolbar:false"><head>...</head></pre>
<p><strong>Title 元素:</strong>title 元素定義文檔的標(biāo)題,該標(biāo)題顯示在瀏覽器的標(biāo)題欄中。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><title>Name of Web Page</title></pre>
<p><strong>Body元素:</strong>body元素包含文檔的主要內(nèi)容,包括文本、圖像和其他媒體。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><body>...</body></pre>
<p>除了這些基本標(biāo)簽之外,其他幾個(gè)元素可以幫助添加內(nèi)容以創(chuàng)建一個(gè)出色的網(wǎng)站。這些是-</p>
<p><strong>標(biāo)題:</strong>標(biāo)題(H1、H2、H3 等)有助于構(gòu)建內(nèi)容并提供信息的層次結(jié)構(gòu)。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><h1>Main Heading</h1></pre>
<p><strong>段落:</strong>段落 (<p>) 有助于定義文本塊。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><p>Hello World</p></pre>
<p><strong>鏈接:</strong>鏈接 (<a>) 允許用戶導(dǎo)航到其他網(wǎng)頁(yè)或其他資源。</p>
<p><strong>語(yǔ)法:</strong></p>
<pre class="brush:php;toolbar:false"><a href="https://www.EDUCBA.com">Link to EDUCBA website</a></pre>
<p><strong>Images: </strong>Images (<img>) can provide visual content in a document.</p>
<p><strong>Syntax:</strong></p>
<pre class="brush:php;toolbar:false"><img src="image.jpg" alt="Image Description"></pre>
<p><strong>Code:</strong></p>
<pre class="brush:php;toolbar:false"><!DOCTYPE html>
<html>
<head>
<title>EDUCBA’s Page


Hello World! This is EDUCBA’s first web page.

Output:

什么是 HTML?

How to Create an HTML Table?

There are specific table tags to create a table – mainly,

, , and
,
.

Pre-requisites for HTML Table

For an absolute beginner, it is essential to know what the different table tags do before writing a basic code.

  • : Defines a table
  • : Defines a table row
  • : Defines a table header cell
  • : Defines a table data cell

    Student Details Table

    John has to create a webpage showing the names of students in a class along with their marks in mathematics and science. He draws the following table.

    Name Mathematics Science
    Mary 78 92
    Susan 98 84
    Amy 63 79

    Now, John wants to write the code to transform this table into an HTML table on a webpage. The steps-

    Step #1: Open an HTML code editor. This tutorial demonstrates how to write code in Visual Studio Code. If the PC doesn’t have VS Code, one can download it here.

    Step #2: Select File > New Text File.

    什么是 HTML?

    Step #3: Click on “Select a language” and then type HTML in the text box. Choose the HTML option to create a new HTML file.

    什么是 HTML?

    Step #4: Again, go to File > Save As and save the file with the filename.html format.

    什么是 HTML?

    什么是 HTML?

    Step #5: Add the basic code, i.e., HTML template of doctype declaration, HTML tag, head tag, title tag, and body tag, as shown below. Set the title as Student Details.

    Code:

    <!DOCTYPE html>
    
    
    Student Details
    
    
    
    

    Output:

    什么是 HTML?

    Opening the file should show the following blank web page. Note the title in the browser tab has changed to “Student Details.”

    什么是 HTML?

    Step #6: Now, define the table using the

    tag inside the body tag. Define the first row using the tag, and add 3 headings cells – Name, Mathematics, and Science, using the tag, and adding the data in each cell using
    tag. Don’t forget to close the tags with a corresponding closing tag.

    Code:

    <table>
    <tr>
    <th>Name</th>
    <th>Mathematics</th>
    <th>Science</th>
    </tr>
    </table>

    Save the file and refresh the webpage to see the updated output:

    什么是 HTML?

    Step #7: Add the student details by defining a row for each student using

    tag. Close the table with the
    tag.

    Code:

    <tr>
    <td>Mary</td>
    <td>78</td>
    <td>92</td>
    </tr>
    <tr>
    <td>Susan</td>
    <td>98</td>
    <td>84</td>
    </tr>
    <tr>
    <td>Amy</td>
    <td>63</td>
    <td>79</td>
    </tr>

    Once again, save and refresh the webpage to see the final output:

    Code:

    <!DOCTYPE html>
    
    
    Student Details
    
    
    
    <tr>
    <td>Mary</td>
    <td>78</td>
    <td>92</td>
    </tr>
    <tr>
    <td>Susan</td>
    <td>98</td>
    <td>84</td>
    </tr>
    <tr>
    <td>Amy</td>
    <td>63</td>
    <td>79</td>
    </tr>
    
    Name Mathematics Science

    Applications of HTML

    Application How Does HTML Help?
    Web pages To create web pages, provide the structure and content for displaying information in a web browser.

    ?

    E-commerce To create online stores, product catalogs, and shopping carts, allowing customers to purchase products and services online.

    ?

    Landing pages To develop compelling landing pages for websites that capture a visitor’s attention and encourage them to take a specific action.

    ?

    Newsletters It allows the creation of interactive and visually appealing newsletters, such as corporate newsletters, that deliver to subscribers via email.

    ?

    Online portfolios To create online portfolios for artists, photographers, and other creatives, showcasing their work and skills to potential clients and employers.

    ?

    Blogs One can create blogs, which are personal websites that provide a platform for writing and publishing articles and other content.
    Documentation It helps to create documentation and help files, providing information and guidance to users of the software and other products.

    ?

    Advertisements It can help make advertisements embedded on websites and social media platforms, promoting products and services to a wide audience.

    ?

    Forms To create a form, one can use
    elements.

    ?

    Advantages and Disadvantages

    Pros Cons
    Open Standard: It is free of cost and readily available. Limited Functionality: It cannot perform complex tasks like calculations or data storage.
    Easy to Learn: HTML tags are basic and in a readable format, enclosed in angle brackets. It’s easy to learn and use, even for non-programmers. Poor Security: It is vulnerable to security threats such as cross-site scripting (XSS) and SQL injection.
    Search Engine Friendly: Search engines can easily crawl and index the content of the pages. Inconsistent Browsers: Different browsers render HTML differently, leading to an inconsistent display of web pages on different browsers.
    Community Support: It has large community support and many online resources available for learning and troubleshooting. Poor Design Flexibility: It provides limited design options and creates static websites, making it difficult to create visually appealing dynamic websites without integrating CSS and JavaScript.

    Final Thoughts

    In conclusion, Hypertext Markup Language is a cornerstone of the World Wide Web. It provides a standardized way of defining the structure and content of a web page using a combination of tags and attributes. With HTML, one can create simple text-based web pages or complex, multimedia-rich applications. It is easy to learn and widely used, making it an essential skill for anyone interested in web development.

    FAQs

    Q1. How to convert an HTML to PDF?

    Answer: To convert, use a library or online service that supports HTML to PDF conversion.

    Q2. How to add an image in HTML?

    Answer: To add an image, use the tag with the src attribute pointing to the image file’s URL or local path. Example:

    <img src="image.jpg" alt="Alt text">

    Q3. Is HTML a programming language? What is the HTML used for?

    Answer: Hypertext Markup Language is not a programming language, it is a markup language used for creating web pages and other information displayed in a web browser. HTML defines the structure and content of a web page using a set of markup tags.

    Q4. How to add a video in HTML?

    Answer: To add a video, use the

    <video src="video.mp4"></video>

    One can also add controls to play, pause, and adjust volume with the controls attribute:

    <video src="video.mp4" controls></video>

    Q5. Is HTML case-sensitive?

    Answer: No, elements are not case-sensitive. However, as best practice, it’s good to follow the same casing in all tags or elements to improve code readability.

    Q6. How many tags are in HTML?

    Answer: There are over 140 tags specified in the HTML5 standard, but some of them have become obsolete and are not widely used. Commonly used tags include headings, paragraphs, links, images, lists, tables, forms, and multimedia elements like audio and video.

    Q7. What is HTML doctype?

    Answer: The first line of a document is the doctype or document type declaration, which defines the version of the HTML used. Example:

    <!DOCTYPE html>

    ?Q8. What is an HTML header?

    Answer: The HTML

    tag defines a header section in a document. This section typically contains information such as the page title, logo, and navigation menu. The header section is usually displayed at the top of the page, and its content is typically shared across multiple pages of a website. The header tag helps to define the structure and hierarchy of a web page and makes it easier to create a consistent look and feel across multiple pages.

    以上是什么是 HTML?的詳細(xì)內(nèi)容。更多信息請(qǐng)關(guān)注PHP中文網(wǎng)其他相關(guān)文章!

    本站聲明
    本文內(nèi)容由網(wǎng)友自發(fā)貢獻(xiàn),版權(quán)歸原作者所有,本站不承擔(dān)相應(yīng)法律責(zé)任。如您發(fā)現(xiàn)有涉嫌抄襲侵權(quán)的內(nèi)容,請(qǐng)聯(lián)系admin@php.cn

    熱AI工具

    Undress AI Tool

    Undress AI Tool

    免費(fèi)脫衣服圖片

    Undresser.AI Undress

    Undresser.AI Undress

    人工智能驅(qū)動(dòng)的應(yīng)用程序,用于創(chuàng)建逼真的裸體照片

    AI Clothes Remover

    AI Clothes Remover

    用于從照片中去除衣服的在線人工智能工具。

    Clothoff.io

    Clothoff.io

    AI脫衣機(jī)

    Video Face Swap

    Video Face Swap

    使用我們完全免費(fèi)的人工智能換臉工具輕松在任何視頻中換臉!

    熱工具

    記事本++7.3.1

    記事本++7.3.1

    好用且免費(fèi)的代碼編輯器

    SublimeText3漢化版

    SublimeText3漢化版

    中文版,非常好用

    禪工作室 13.0.1

    禪工作室 13.0.1

    功能強(qiáng)大的PHP集成開(kāi)發(fā)環(huán)境

    Dreamweaver CS6

    Dreamweaver CS6

    視覺(jué)化網(wǎng)頁(yè)開(kāi)發(fā)工具

    SublimeText3 Mac版

    SublimeText3 Mac版

    神級(jí)代碼編輯軟件(SublimeText3)

    構(gòu)建網(wǎng)頁(yè)的HTML元素是什么? 構(gòu)建網(wǎng)頁(yè)的HTML元素是什么? Jul 03, 2025 am 02:34 AM

    網(wǎng)頁(yè)結(jié)構(gòu)需核心HTML元素支撐,1.頁(yè)面整體結(jié)構(gòu)由、、構(gòu)成,其中為根元素,存放元信息,展示內(nèi)容;2.內(nèi)容組織依賴標(biāo)題(-)、段落()及區(qū)塊標(biāo)簽(如、)以提升條理與SEO;3.導(dǎo)航通過(guò)與實(shí)現(xiàn),常用組織鏈接并輔以aria-current屬性增強(qiáng)可訪問(wèn)性;4.表單交互涉及、、與,確保用戶輸入與提交功能完整。正確使用這些元素能提升頁(yè)面清晰度、維護(hù)性及搜索引擎優(yōu)化。

    使用HTML5服務(wù)器序列事件處理重新連接和錯(cuò)誤。 使用HTML5服務(wù)器序列事件處理重新連接和錯(cuò)誤。 Jul 03, 2025 am 02:28 AM

    使用HTML5SSE時(shí),處理重連和錯(cuò)誤的方法包括:1.了解默認(rèn)重連機(jī)制,EventSource默認(rèn)在連接中斷后3秒重試,可通過(guò)retry字段自定義間隔;2.監(jiān)聽(tīng)error事件以應(yīng)對(duì)連接失敗或解析錯(cuò)誤,區(qū)分錯(cuò)誤類型并執(zhí)行相應(yīng)邏輯,如網(wǎng)絡(luò)問(wèn)題依賴自動(dòng)重連、服務(wù)器錯(cuò)誤手動(dòng)延遲重連、認(rèn)證失效刷新token;3.主動(dòng)控制重連邏輯,如手動(dòng)關(guān)閉并重建連接、設(shè)置最大重試次數(shù)、結(jié)合navigator.onLine判斷網(wǎng)絡(luò)狀態(tài)以優(yōu)化重試策略。這些措施可提升應(yīng)用穩(wěn)定性與用戶體驗(yàn)。

    為現(xiàn)代頁(yè)面宣布正確的HTML5 Doctype。 為現(xiàn)代頁(yè)面宣布正確的HTML5 Doctype。 Jul 03, 2025 am 02:35 AM

    Doctype是告訴瀏覽器用哪種HTML標(biāo)準(zhǔn)解析頁(yè)面的聲明,現(xiàn)代網(wǎng)頁(yè)只需在HTML文件最開(kāi)頭寫(xiě)。其作用是確保瀏覽器以標(biāo)準(zhǔn)模式而非怪異模式渲染頁(yè)面,且必須位于第一行,前面不能有空格或注釋;正確寫(xiě)法僅有一種,不推薦使用舊版本或其他變體;其他如charset、viewport等應(yīng)放在部分。

    使用HTML屬性實(shí)現(xiàn)客戶端表單驗(yàn)證。 使用HTML屬性實(shí)現(xiàn)客戶端表單驗(yàn)證。 Jul 03, 2025 am 02:31 AM

    client-sideformvalidationCanbedOnewithOutJavaScriptbyusinghtmlattributes.1)useRequiredToEnforCemandatoryField.2)validateMailsAndUrllSwithTyPeatTributesLikeEmailOrurl,orusepatternwithRegegexforCustomAlorurl

    如何使用HTML將選項(xiàng)分組? 如何使用HTML將選項(xiàng)分組? Jul 04, 2025 am 03:16 AM

    在HTML中使用標(biāo)簽可以對(duì)下拉菜單中的選項(xiàng)進(jìn)行分組。具體方法是用包裹一組元素,并通過(guò)label屬性定義組名,如:1.包含蘋(píng)果、香蕉、橙子等選項(xiàng);2.包含胡蘿卜、西蘭花等選項(xiàng);3.每個(gè)為一個(gè)獨(dú)立分組,組內(nèi)選項(xiàng)自動(dòng)縮進(jìn)。注意事項(xiàng)包括:①不支持嵌套;②可通過(guò)disabled屬性禁用整個(gè)組;③樣式受限需結(jié)合CSS或第三方庫(kù)美化;可使用Select2等插件增強(qiáng)功能。

    將CSS和JavaScript與HTML5結(jié)構(gòu)有效整合。 將CSS和JavaScript與HTML5結(jié)構(gòu)有效整合。 Jul 12, 2025 am 03:01 AM

    HTML5、CSS和JavaScript應(yīng)通過(guò)語(yǔ)義化標(biāo)簽、合理加載順序與解耦設(shè)計(jì)高效結(jié)合。1.使用HTML5語(yǔ)義化標(biāo)簽如、提升結(jié)構(gòu)清晰度與可維護(hù)性,利于SEO和無(wú)障礙訪問(wèn);2.CSS應(yīng)置于中,使用外部文件并按模塊拆分,避免內(nèi)聯(lián)樣式與延遲加載問(wèn)題;3.JavaScript推薦放在前引入,使用defer或async異步加載以避免阻塞渲染;4.減少三者間強(qiáng)依賴,通過(guò)data-*屬性驅(qū)動(dòng)行為、類名控制狀態(tài),統(tǒng)一命名規(guī)范提升協(xié)作效率。這些方法能有效優(yōu)化頁(yè)面性能與團(tuán)隊(duì)協(xié)作。

    使用HTML按鈕元素實(shí)現(xiàn)可點(diǎn)擊按鈕 使用HTML按鈕元素實(shí)現(xiàn)可點(diǎn)擊按鈕 Jul 07, 2025 am 02:31 AM

    要使用HTML的button元素實(shí)現(xiàn)可點(diǎn)擊按鈕,首先需掌握其基本用法與常見(jiàn)注意事項(xiàng)。1.使用標(biāo)簽創(chuàng)建按鈕,并通過(guò)type屬性定義行為(如button、submit、reset),默認(rèn)為submit;2.通過(guò)JavaScript添加交互功能,可內(nèi)聯(lián)寫(xiě)法或通過(guò)ID綁定事件監(jiān)聽(tīng)器以提升維護(hù)性;3.利用CSS自定義樣式,包括背景色、邊框、圓角及hover/active狀態(tài)效果,增強(qiáng)用戶體驗(yàn);4.注意常見(jiàn)問(wèn)題:確保未啟用disabled屬性、正確綁定JS事件、避免布局遮擋,并借助開(kāi)發(fā)者工具排查異常。掌握這

    使用新的HTML5方法(FormData)提交表單數(shù)據(jù) 使用新的HTML5方法(FormData)提交表單數(shù)據(jù) Jul 08, 2025 am 02:28 AM

    使用HTML5的FormDataAPI提交表單數(shù)據(jù)更方便,1.它可自動(dòng)收集帶name屬性的表單字段或手動(dòng)添加數(shù)據(jù);2.支持通過(guò)fetch或XMLHttpRequest以multipart/form-data格式提交,適合文件上傳;3.處理文件時(shí)只需將文件附加到FormData并發(fā)送請(qǐng)求即可;4.注意同名字段會(huì)被覆蓋、需處理JSON轉(zhuǎn)換及無(wú)嵌套結(jié)構(gòu)等問(wèn)題。

    See all articles