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10年软件工程经验,先后做过在线教育,IT金融,即时通信,政府,物流平台,零售等项目。如今主要从事音视频业务的监控项目研发以及人脸识别应用的集成。

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TA的排名 326

MDF does not reside in a read-only database or filegroup

错误信息“The file "MDF" is compressed but does not reside in a read-only database or filegroup. The file must be decompressed.”解决:1. C:\Program Files\Microsoft SQL Server\MSSQL14.MSSQLSERVER\MSSQL2....

2019-07-24 22:26:51

ffmpeg常用命令

1.rtspintomp4ffmpeg.exe-i"rtsp://username:password@192.168.1.183:554"-fmp4-r25-an640x480-ss600-t600-s"test.mp4"2.rtsporvideotoimagesffmpeg-rtsp_transporttcp-irtsp://.....

2019-07-24 22:25:34

c# RabbitMQ 和 ActiveMQ windows环境的配置和使用

c#RabbitMQ和ActiveMQwindows环境的配置和使用RabbitMQ1.下载配置erlang确保'ERLANG_HOME'在环境变量中配置2.下载安装rabbitmq3.激活managementportal插件:cdC:\ProgramFiles(x86)\RabbitMQServer\rabbitmq_server-3.3....

2019-07-24 22:22:39

C# 解码smtp协议报文中的QuotedPrintable格式

C# 解码smtp协议报文中的QuotedPrintable格式private static string DecodeQuotedPrintables(string input, string charSet) { if (string.IsNullOrEmpty(charSet)) { var...

2019-07-24 22:18:13

c# digest身份验证

c# digest身份验证1. digest http request 类public class DigestHttpWebRequest { private string _user; private string _password; private string _realm; private string _n...

2019-07-24 22:17:31

c# topshelf 编写windows service

使用topself写windowsservice1.在console程序的program.csmain函数中注册服务信息(安装服务时会调用)...staticvoidMain(string[]args){log4net.Config.XmlConfigurator.Configure();log.Inf...

2019-03-30 22:39:30

使用C# 发送不同信息格式的http请求

1.最常见的postjsonvarjsonObject=JsonConvert.SerializeObject(model);...varstr=newStringContent(jsonObject,Encoding.UTF8,"application/json");...2.urlencodedcon...

2019-03-30 22:37:18

ubuntu 开机自动执行脚本

$crontab-e@reboot(sleep30;bash/path/to/your/script.sh)

2019-03-30 22:32:09

yolo+ ubuntu完成视频分析

使用yoloubuntu完成视频分析下载源码并编译gitclonehttps://github.com/pjreddie/darknetcddarknetmake下载训练好的模型wgethttps://pjreddie.com/media/files/yolov3.weights使用命令预测图片./darknetdetectcfg/yolov3.cfg...

2019-02-16 22:07:33

使用POSTMAN 测试firebase

使用postman测试google firebase 消息通知1. urlhttps://fcm.googleapis.com/fcm/send2. Header :Authorization key={your api key}Content-Type application/json3. body :{ "to" : "{device refresh token...

2019-02-16 22:06:23

ubuntu 配置opencv 3.4环境

ubuntuinstallopencv-3.4 cd~/mkdiropencvcd~/opencvsudoapt-getupdatesudoapt-getinstall-ybuild-essentialcmakesudoapt-getinstall-yqt5-defaultlibvtk6-devsudoapt-getinstall-yzl...

2019-02-16 22:05:22

Javascript 从ES5到ES7 - 20高阶函数

1.bindvalueinto'this'constarea=function(){  returnthis.width*this.height;}; constboundArea=area.bind({width:2,height:3});boundArea();2.formatcurrency函数constforma...

2019-02-05 15:48:36

Javascript 从ES5到ES7 - 19 map,reduce,filter

1.mapconstnumbers=[2,4,8,10];consthalves=numbers.map(x=>x/2);2.filterconstwords=["spray","limit","elite","exuberant","destruction","present"];constlongWords

2019-02-05 15:47:23

Javascript 从ES5到ES7 - 18 __proto__

1.thisvsprototypefunctionFn(){}Fn.prototype.print=function(){console.log("CallingFn.prototype'sprintmethod");};varobj=newFn();obj.print();//->CallingFn.prototype'spri...

2019-02-05 15:46:55

Javascript 从ES5到ES7 - 17 Object.keys 和Object.entries进行集合遍历

array.includes:vararr=[1,2,3,4,5]arr.indexOf(3)>=0//trueequalsarr.includes(3)//trueObject.values:varobj={a:1,b:"2",c:3.0}console.log(Object.values(obj));//[1,"2",3.0]usingObj...

2019-02-05 15:45:49

Javascript 从ES5到ES7 - 16 使用requestAnimationFrame代替setInterval完成动画效果

varglobalID;functionrepeatOften(){ $("<div/>").appendTo("body"); globalID=requestAnimationFrame(repeatOften);}$("#start").on("click",function(){ globalID=requestAnimationFr...

2019-02-05 15:44:45

Javascript 从ES5到ES7 - 15 浏览器api与调用栈

实例1functionmain(){ console.log('A'); setTimeout(  functiondisplay(){console.log('B');} ,0);   console.log('C');}main();//   Output//   A//   C// B1.main函数进入调用栈,console....

2019-02-05 15:42:32

Javascript 从ES5到ES7 - 14 类型运算

1.数字,字符串,数组,布尔混合操作的几种情况3*"3"//91+"2"+1//121true+true//210-true//9constfoo={ valueOf:()=>2}3+foo//54*foo//8constbar={ toString:()=>"promise...

2019-02-05 15:37:58

Javascript 从ES5到ES7 - 13 Call, apply , bind

Call :var obj = {name:"Niladri"};var greeting = function(a,b,c){ return "welcome "+this.name+" to "+a+" "+b+" in "+c;};console.log(greeting.call(obj,"Newtown","KOLKATA",&quot

2019-02-05 15:37:00

Javascript 从ES5到ES7 - 12 Promise.All

Promise.all([GetResource1(),GetResource2()]) .then([json1,json2])=>{ //processjson1 //processjson2 } varpromise1=Promise.resolve(3);varpromise2=42;varpromise3=n...

2019-02-05 15:36:23

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