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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...即一个信号量最多可以被锁住n次，其中n是信号量产生时指定的，当某线程试图对该信号量进行第n+1次加锁，则该线程将会发生阻塞，直到前n次加锁中任意一次释放该信号量。信号量可以看作是容量为1的特殊的互斥量。另外，...
How to generate unique ID with node.js
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Install NPM uuid package (sources: https://github.com/kelektiv/node-uuid):
npm install uuid
and use it in your code:
var uuid = require('uuid');
Then create some ids ...
// Generate a v1 (time-based) id
uuid.v1(); // -> '6c84fb...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...泛网 关于我们 免责申明 联系我们 手机版 IT搜索 下载栏目 图片栏目 网站地图 IT技术 C/C++ 开源 & Github 数据库(内核) 大数据 & AI 其他 IT专题 还在用Java开发安卓App？你out啦！ 轻松创APP ...
Python: How to create a unique file name?
...stion was very clear, but if all you need is a unique file name...
import uuid
unique_filename = str(uuid.uuid4())
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Random string generation with upper case letters and digits
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Simply use Python's builtin uuid:
If UUIDs are okay for your purposes, use the built-in uuid package.
One Line Solution:
import uuid; uuid.uuid4().hex.upper()[0:6]
In Depth Version:
Example:
import uuid
uuid.uuid4() #uuid4 => full random uuid
#...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...i会提醒你应该出发的时间。iOS 9还将提供更深层面的信息搜索，苹果甚至提供了搜索的API接口，这样用户可以搜索到APP内部的信息等更多内容。
在日常使用方面iOS 9将提供更为智能的体验，当你早上拿起iPhone的第一时间，它会...
nsis指定默认安装路径，记住上次安装路径 - 更多技术 - 清泛网 - 专注C/C++...
nsis指定默认安装路径，记住上次安装路径!define PRODUCT_DEFAULT_PATH "C: Test"....InstallDir "${PRODUCT_DEFAULT_PATH}"InstallDirRegKey HKLM "Software Microsoft Windo...!define PRODUCT_DEFAULT_PATH "C:\Test"
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InstallDir "${PRODUCT_DEFAULT_PATH}"
InstallDirRegKey HKLM "Softwar...
Collisions when generating UUIDs in JavaScript?
... this question . I am using the code below from this answer to generate UUID in JavaScript:
6 Answers
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How do you create a random string that's suitable for a session ID in PostgreSQL?
... years old. Check out this for a totally different method using gen_random_uuid(): faster, more randomness, more efficiently stored in the database.
– Evan Carroll
Jan 12 '17 at 8:11
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Generating Guids in Ruby
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As of Ruby 1.9, uuid generation is built-in. Use the SecureRandom.uuid function.
For example:
require 'securerandom'
SecureRandom.uuid # => "96b0a57c-d9ae-453f-b56f-3b154eb10cda"
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