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App Inventor 2 PDF文档预览 · App Inventor 2 中文网
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demo 下载:
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预览PDF文档的方式
你可以使用Activity启动器查看已存储在你的设备上的 pdf 文档,也可以使用Web客户端通过网址URL打开 pdf 文档。
App Inventor 2 可以使用 .pdf 扩展名从程序包资产中查看 pdf 文件,不再...
如何查看Android应用.apk是32位还是64位? - App应用开发 - 清泛IT社区,为创新赋能!
1、Android Studio 分析工具
如何判断APK的架构
1)使用APK分析工具:Android Studio 提供了一个内置工具叫做APK Analyzer,它可以帮助你查看APK的内容,包括其支持的架构。打开Android Studio,选择“Build” > “Analyze APK…”,然后选择你...
App Inventor 2 怎么修改app图标? · App Inventor 2 中文网
...跳转中文文档页面:
镂空效果
可以使用透明背景的png图片作为图标,以实现镂空的效果。
经过测试,使用透明背景的 .png 图片作为App的图标,可以实现镂空效果:
比如:app.png
使用看图软件打开的效果...
搭建高可用mongodb集群(二)—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...功能。这篇文章主要介绍副本集:
mongoDB官方已经不建议使用主从模式了,替代方案是采用副本集的模式,点击查看 ,如图:
那什么是副本集呢?打魔兽世界总说打副本,其实这两个概念差不多一个意思。游戏里的副本是指...
How to monitor network calls made from iOS Simulator
...etails, including support for SSL and various request/reponse format, like JSON, etc...
You can also configure it to sniff only requests to specific servers, not the whole traffic.
It's commercial software, but there is a trial, and IMHO it's definitively a great tool.
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How to find SQL Server running port?
...g on'
GO
http://www.mssqltips.com/sqlservertip/2495/identify-sql-server-tcp-ip-port-being-used/
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Do I need to heartbeat to keep a TCP connection open?
I have two components that that communicate via TCP/IP. Component A acts as a server/listener and Component B is the client. The two should communicate as quickly as possible. There can only ever be one connection at any time (though that is aside to this question). A senior developer at my comp...
C语言结构体里的成员数组和指针 - C/C++ - 清泛网 - 专注C/C++及内核技术
...为什么在VC++2012下编译你会得到一个警告:“arning C4200: 使用了非标准扩展 : 结构/联合中的零大小数组”。
那么为什么gcc可以通过而连一个警告都没有?那是因为gcc 为了预先支持C99的这种玩法,所以,让“零长度数组”这种玩...
What is the fundamental difference between WebSockets and pure TCP?
...d about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets?
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Which websocket library to use with Node.js? [closed]
...var timestamp = new Date().getTime();
userId = timestamp;
ws.send(JSON.stringify({msgType:"onOpenConnection", msg:{connectionId:timestamp}}));
ws.on("message", function (data, flags) {
console.log("websocket received a message");
var clientMsg = data;
ws.send(...
