HTML 元素列表<pre>本页总览<pre>HTML <pre> 标签预格式化的文本:<body><pre> 此例演示如何使用 pre 标签 对空行和 空格 进行控制 </pre></body>效果展示:此例演示如何使用 pre 标签对空行和 空格进行控制标签定义及使用说明<pre> 标签可定义预格式化的文本。被包围在 <pre> 标签 元素中的文本通常会保留空格和换行符。而文本也会呈现为等宽字体。提示和注释提示<pre> 标签的一个常见应用就是用来表示计算机的源代码。在HTML 4.01 与 HTML5中的差异在 HTML 4.01 中,"width" 属性已废弃,不可使用。 HTML5 不支持"width"属性。属性属性值描述widthnumberHTML5 不支持该属性。HTML 4.01 已废弃该属性。 定义每行的最大字符数(通常是 40、80 或 132)。全局属性<pre> 标签支持 HTML 的全局属性。事件属性<pre> 标签支持 HTML 的事件属性。浏览器兼容性ChromeEdgeFirefoxOperaSafariChrome AndroidFirefox for AndroidOpera AndroidSafari on iOSSamsung InternetWebView AndroidpreFull supportChromeYesToggle historyFull supportEdge12Toggle historyFull supportFirefox1Toggle historyFull supportOperaYesToggle historyFull supportSafariYesToggle historyFull supportChrome AndroidYesToggle historyFull supportFirefox for Android4Toggle historyFull supportOpera AndroidYesToggle historyFull supportSafari on iOSYesToggle historyFull supportSamsung InternetYesToggle historyFull supportWebView AndroidYesToggle historycolsDeprecatedNon-standardNo supportChromeNoToggle historyNo supportEdgeNoToggle historyNo supportFirefox1Toggle historyNo supportOperaNoToggle historyNo supportSafariNoToggle historyNo supportChrome AndroidNoToggle historyNo supportFirefox for Android4Toggle historyNo supportOpera AndroidNoToggle historyNo supportSafari on iOSNoToggle historyNo supportSamsung InternetNoToggle historyNo supportWebView AndroidNoToggle historywidthDeprecatedNon-standardFull supportChromeYesToggle historyFull supportEdge12Toggle historyFull supportFirefox1Toggle historyFull supportOperaYesToggle historyFull supportSafariYesToggle historyFull supportChrome AndroidYesToggle historyFull supportFirefox for Android4Toggle historyFull supportOpera AndroidYesToggle historyFull supportSafari on iOSYesToggle historyFull supportSamsung InternetYesToggle historyFull supportWebView AndroidYesToggle historywrapDeprecatedNon-standardCompatibility unknown; please update this.Chrome?Toggle historyCompatibility unknown; please update this.Edge?Toggle historyFull supportFirefox1Toggle historyCompatibility unknown; please update this.Opera?Toggle historyCompatibility unknown; please update this.Safari?Toggle historyCompatibility unknown; please update this.Chrome Android?Toggle historyFull supportFirefox for Android4Toggle historyCompatibility unknown; please update this.Opera Android?Toggle historyCompatibility unknown; please update this.Safari on iOS?Toggle historyCompatibility unknown; please update this.Samsung Internet?Toggle historyCompatibility unknown; please update this.WebView Android?Toggle history