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App Inventor 2 扩展开发实战：从Java小白到发布第一个.aix自定义插件 - Ap...
...的 .aix 文件。
• 编写语言：Java（需要JDK 8+）
• 构建工具：Gradle（MIT App Inventor开源项目使用）
• 运行限制：目前仅支持非可视组件（在屏幕上看不到UI，只能出现在"非可视组件"区）
• 兼容性：要求Android API Level ...
How are ssl certificates verified?
...ted certificate authority.
The certificate contains the domain name and/or ip address of the web server. Your web browser confirms with the certificate authority that the address listed in the certificate is the one to which it has an open connection.
Your web browser generates a shared symmetric k...
UDP vs TCP, how much faster is it? [closed]
...dges a set of packets, calculated by using the TCP window size and round-trip time (RTT).
For more information, I recommend the simple, but very comprehensible Skullbox explanation (TCP vs. UDP)
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Redis 的性能幻想与残酷现实 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的扩展能力还是更敏感的性能需求，然后再来选择合适的工具吧。别只看到个基准测试的性能数据，就欢呼雀跃起来了。
额外扯点其他的，Redis 的作者 @antirez 对自己的产品和技术那是相当自信。一有人批评 Redis 的问题，他都...
Cookies vs. sessions
...omes invalid. If it was all based on cookies, a user (or hacker) could manipulate their cookie data and then play requests to your site.
Edit: I don't think there is any advantage to using cookies, other than simplicity. Look at it this way... Does the user have any reason to know their ID#? Ty...
Master-master vs master-slave database architecture?
... this is that it is very hard to preserve absolute consistency. See the wikipedia article for more.
Wikipedia seems to have a nice summary of the advantages and disadvantages
Advantages
If one master fails, other masters will continue to update the
database.
Masters can be located ...
403 Forbidden vs 401 Unauthorized HTTP responses
...as. I typically use this status code for resources that are locked down by IP address ranges or files in my webroot that I don't want direct access to (i.e. a script must serve them).
– Kyle
May 9 '13 at 13:20
...
What's the difference between streams and datagrams in network programming?
...datagram socket when order is less important than timely delivery (think VoIP or game protocols), when you don't want the higher overhead of a stream (this is why DNS is primarily a datagram protocol, so that servers can respond to many, many requests at once very quickly), or when you don't care to...
那些我印象深刻的建议和教诲 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...了下来……
这就是我呆的第一家公司的“风范”，新的工具、框架都只扔一个名词出来，项目经理似乎也很不耐烦我去问东问西——当然真正去问的时候，他的态度还是比较好的。有一天下班的时候他看我还是愁眉不展地面对...
Using Custom Domains With IIS Express
...
You could also use a URL like http://jam.127.0.0.1.xip.io/ if you don't want modify your hosts file. Plus, any collaborators won't need to modify theirs. See xip.io.
– Zack Martin
Aug 11 '16 at 16:12
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