不幸的是，大多数现代浏览器都不支持样式表的加载。我发现有一点谷歌搜索解决方案。
基础
最基本的实现可以通过大约30行（独立于框架）Javascript代码完成：
function loadStyleSheet( path, fn, scope ) { var head = document.getElementsByTagName( 'head' )[0], // reference to document.head for appending/ removing link nodes link = document.createElement( 'link' );// create the link node link.setAttribute( 'href', path ); link.setAttribute( 'rel', 'stylesheet' ); link.setAttribute( 'type', 'text/css' ); var sheet, cssRules;// get the correct properties to check for depending on the browser if ( 'sheet' in link ) { sheet = 'sheet'; cssRules = 'cssRules'; } else { sheet = 'styleSheet'; cssRules = 'rules'; } var interval_id = setInterval( function() { // start checking whether the style sheet has successfully loaded try { if ( link[sheet] && link[sheet][cssRules].length ) { // SUCCESS! our style sheet has loaded clearInterval( interval_id );// clear the counters clearTimeout( timeout_id ); fn.call( scope || window, true, link );// fire the callback with success == true } } catch( e ) {} finally {} }, 10 ), // how often to check if the stylesheet is loaded timeout_id = setTimeout( function() { // start counting down till fail clearInterval( interval_id ); // clear the counters clearTimeout( timeout_id ); head.removeChild( link ); // since the style sheet didn't load, remove the link node from the DOM fn.call( scope || window, false, link ); // fire the callback with success == false }, 15000 );// how long to wait before failing head.appendChild( link ); // insert the link node into the DOM and start loading the style sheet return link; // return the link node;}这将允许您使用如下的onload回调函数加载样式表：
loadStyleSheet( '/path/to/my/stylesheet.css', function( success, link ) { if ( success ) { // pre to execute if the style sheet was loaded successfully } else { // pre to execute if the style sheet failed to successfully }} );或者，如果您希望回调保持其范围/上下文，则可以执行以下操作：
loadStyleSheet( '/path/to/my/stylesheet.css', this.onComplete, this );
