var mongoose = require('mongoose'), async = require('async'); mongoose.connect('localhost', 'learn-mongoose'); var User = mongoose.model('User', {name: String}); async.series([ function (done) { // remove User collection if exist User.remove(done); }…
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using System.Threading.Tasks; namespace 异步 { class AwaitAsyncShow { #region 没有await前提下与普通方法无异 /// <summary> /// 注:async与await要成对出现,否则生命asyn…