export default {
    rootUrl:"http://wwww.xxxx.com",
    queryBookUrl:function(){
        return this.rootUrl+'/book/query'
    }
}

var services=require('services');
services.queryBookUrl();

或者

var rootUrl="http://wwww.xxxx.com";
export default {
    rootUrl:rootUrl,
    queryBookUrl:rootUrl+'/book/query'
}

var services=require('services');
services.queryBookUrl;

或者

export default function(rootUrlIn){
    var rootUrl=rootUrlIn||"http://wwww.xxxx.com";
    return {
        rootUrl:rootUrl,
        queryBookUrl:rootUrl+'/book/query'
    }
};

var services=require('services')();
services.queryBookUrl;