// 插入 meta 标签

        var oMeta = document.createElement('meta');

        oMeta.content = 'width=device-width, initial-scale=1.0, maximum-scale=1.0,minimum-scale=1.0, user-scalable=0';

        oMeta.name = 'viewport';

        document.getElementsByTagName('head')[0].appendChild(oMeta);

        // 插入 script 标签

        var script = document.createElement("script");

        script.type = "text/javascript";

        script.src = "index.js";

        document.getElementsByTagName('head')[0].appendChild(script);