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【解决】App Inventor 2 如何下载/保存网络图片？ - App Inventor 2 中文网...
...为真，这样才能将目标网络图片保存到本地设备：如果不指定相应文件名称属性，则保存在本地的图片文件默认是以时间戳作为文件名的一部分的，如下：重新请求一次，文件名发生了变化：指定相应文件名称属性，则图片文件...
App Inventor 2 如何下载/保存网络图片？ - App Inventor 2 中文网 - 清泛I...
...为真，这样才能将目标网络图片保存到本地设备。如果不指定响应文件名称属性，则保存在本地的图片文件默认是以时间戳作为文件名的一部分的，如下：重新请求一次，文件名发生了变化：指定响应文件名称属性，则图片文件...
京东618：算法让UV价值提升200%+，用智能卖场缩短购物路径 - 更多技术 - 清...
...示，该项目基于大数据挖掘、人工智能等技术能力，通过搜索、推荐、智能卖场、揽客计划、智慧物流、智慧数据等多种产品形态，对京东现有系统，从架构层的基础设施、数据平台、计算分析，到业务层的精准营销、智慧选品...
Is it safe to assume a GUID will always be unique?
..., for every cell in every person who has ever lived, there are 36 trillion UUIDs. You have about 10^14 cells in your body, and 106.5 billion people have ever lived. Or, 2.385 * 10^23 UUIDs for every cent in the US public debt.
– new123456
Aug 11 '11 at 1:47
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INT 10H 中断介绍 - C/C++ - 清泛网 - 专注C/C++及内核技术
...示器所提供的服务程序。使用 INT 10H 中断服务程序时，先指定 AH 寄存器为下表编号其中之一，该编号表示欲调用的功用，而其他寄存器的详细说明，参考表后文字，当一切设定好之后再调用 INT 10H。底下是它们的说明：
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Is there a unique Android device ID?
...r Blog entry that emmby's answer links to (namely, generating and saving a UUID#randomUUID()).
There are many answers to this question, most of which will only work "some" of the time, and unfortunately, that's not good enough.
Based on my tests of devices (all phones, at least one of which is not ...
How to Create Deterministic Guids
...s mentioned by @bacar, RFC 4122 §4.3 defines a way to create a name-based UUID. The advantage of doing this (over just using a MD5 hash) is that these are guaranteed not to collide with non-named-based UUIDs, and have a very (very) small possibility of collision with other name-based UUIDs.
There'...
搭建高可用mongodb集群（三）—— 深入副本集内部机制 - 大数据 & AI - 清...
...什么Bully算法？要明白这个我们先看看这两种架构：
指定主节点的架构，这种架构一般都会申明一个节点为主节点，其他节点都是从节点，如我们常用的mysql就是这样。但是这样架构我们在第一节说了整个集群如果主节点挂...
Random hash in Python
... what you are looking for is a universal unique identifier.Then the module UUID in python is what you are looking for.
import uuid
uuid.uuid4().hex
UUID4 gives you a random unique identifier that has the same length as a md5 sum. Hex will represent is as an hex string instead of returning a uuid ...
Best way to generate random file names in Python
...s command), this will not do. In that case, you can do something like str(uuid.uuid4()) .
– Luca
Jul 23 '16 at 18:20
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