动态加载JS/CSS资料-改进版

动态加载JS/CSS文件--改进版

//动态加载js、css内容，直接写入页面：动态添加js/CSS的内容在页面上：function loadScriptString(code){    var script = document.createElement("script");    script.type = "text/javascript";    try {        script.appendChild(document.createTextNode(code));    } catch (ex){          script.text = code;  // IE    }    document.body.appendChild(script);}    function loadStyleString(css){    var style = document.createElement("style");    style.type = "text/css";    try{        style.appendChild(document.createTextNode(css));    } catch (ex){        style.styleSheet.cssText = css; //IE    }    var head = document.getElementsByTagName("head")[0];    head.appendChild(style);}Usage:    loadScriptString('function sayHi(){alert("hi");}');    loadStyleString('body{background-color:red}');