Promise.any ---- 参数是一个promise的数组。any的作用就是 promise 数组中任意一个 promise 执行完毕，就会执行 done内的函数

(function () {    "use strict";    WinJS.Binding.optimizeBindingReferences = true;    var app = WinJS.Application;    var activation = Windows.ApplicationModel.Activation;    app.onactivated = function (args) {        if (args.detail.kind === activation.ActivationKind.launch) {            if (args.detail.previousExecutionState !== activation.ApplicationExecutionState.terminated) {                var promiseArr = [];                var url = 'http://files.cnblogs.com/Mr-Joe/a.js';                var url2 = 'http://files.cnblogs.com/Mr-Joe/a2.js';                var success = function (text) {                    var a = JSON.parse(text.responseText);                }                var getData = function (url) {                    promiseArr.push(WinJS.xhr({                        url: url                    }))                }                getData(url2);                getData(url);                WinJS.Promise.any(promiseArr).done(function (result) {                    var primiseIndex = result.index;  //the index of  fullfilled promise.                });            }        }        args.setPromise(WinJS.UI.processAll());    };    app.start();})();

Promise.join 

Promise.any ---- 参数是一个promise的数组。any的作用就是 promise 数组所有的 promise 执行完毕，才会执行 done内的函数