用JavaScript动态加载CSS和JS文件

函数封装：

var dynamicLoading = {
    css: function(path){
        if(!path || path.length === 0){
            throw new Error('argument "path" is required !');
        }
        var head = document.getElementsByTagName('head')[0];
        var link = document.createElement('link');
        link.href = path;
        link.rel = 'stylesheet';
        link.type = 'text/css';
        head.appendChild(link);
    },
    js: function(path){
        if(!path || path.length === 0){
            throw new Error('argument "path" is required !');
        }
        var head = document.getElementsByTagName('head')[0];
        var script = document.createElement('script');
        script.src = path;
        script.type = 'text/javascript';
        head.appendChild(script);
    }
}

 

使用：

//动态加载 CSS 文件
dynamicLoading.css("test.css");

//动态加载 JS 文件
dynamicLoading.js("test.js");

 

摘自：http://www.jsmix.com/javascript/dynamic-loading-css-javascript.html