动态引入脚本和样式

动态引入脚本和样式

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function loadScript(url) {
       var script = document.createElement("script");
       script.type = "text/javascript";
       script.src=url;
       document.body.appendChild(script);
   }
function loadStyles(url) {
    var link = document.createElement("link");
    link.rel="stylesheet";
    link.type="text/css";
    link.href=url;
    var head = document.getElementsByTagName("head")[0];
    head.appendChild(link);
}