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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'...
AppInventor2如何通过socket给网络发16进制的数据？ - App应用开发 - 清泛I...
...方法，可以赐教吗？软件只能发ASCLL码？没办法收发HEX，蓝牙组件的有写字节功能，TCP网络组件没有。
答：
发送文本消息时，hexaStringMode设为 false；发送16制消息时，hexaStringMode设为 true，例如：0x012 —> “303132” 字符串...
第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...输出。
OS本身也是程序，它的运行也是如此，开机后从指定地址处（0x7c00），开始执行指令。先看看本节例子最终运行效果：
编译运行环境：
nasm：Inter x86汇编编译工具，用户将我们的汇编代码编译为二进制。（下载地址...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...就差那么一点点，一点点。。。
连接在mongos上，准备让指定的数据库、指定的集合分片生效。
#指定testdb分片生效
db.runCommand( { enablesharding :"testdb"});
#指定数据库里需要分片的集合和片键
db.runCommand( { shardcollection : "testd...
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 ...
VC窗口刷新InvalidateRect和UpdateWindow - C/C++ - 清泛网 - 专注C/C++及内核技术
...段是窗口的设备环境句柄，rcPaint字段是一个RECT结构，它指定了无效区域矩形的对角顶点（如果开始有一个((0,0),(40,40))，现在又来一个((20,20),(60,30))，那么拼接后就是((0,0),(60,40))），fErase字段如果为非零值，表示Windows在发送WM_PAIN...
【客户反馈】增加直接改项目名称的功能 - 用户反馈 - 清泛IT社区，为创新赋能！
...有些思路在名字上有体现会比较好。比如我一开始只做了蓝牙模块控制，名字ble，后面又加wifi，项目名称改的话就是wifi+ble。
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感谢反馈，采纳此条建议，改名功能推进中，敬请期待！已支持并上线：https://b...
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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