How to use $await in Mr.Async

MrDeferredInAwait.js

// 一个实现了Mr.Deferred的通用异步方法
// 等待一秒钟，计算一个0到1的随机数   
function asyncRandom(callback){
    var de = Mr.Deferred();
    setTimeout(function(){
        var random = Math.random();
        if(typeof callback == 'function')
            callback(random);
        de.resolve(random);
    }, 1000);
    return de;
}

// 接受单个值
eval(Mr.Async.recode(function(){
    var random = $await(asyncRandom());
    console.log(random);
}));

// 多个值
eval(Mr.Async.recode(function(){
    var randoms = $await(asyncRandom(), asyncRandom());
    // 返回值为数组
    console.log(randoms[0]);
    console.log(randoms[1]);
}));