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新手程序员应该知道的7件事 - 创意 - 清泛网 - 专注C/C++及内核技术
...正的开发业务工作又和在学校编程不同，这是你不可能从大学课程或编码学校中学会的东西。
为了了解新手程序员需要知道哪些内容，我咨询了一些经验丰富的编码老将，这些“老”将全部有着至少十年（有的甚至是几十年）...
Installing Latest version of git in ubuntu
...
The Ubuntu git maintainers team has a PPA just for that
ppa:git-core/ppa
Just do:
sudo add-apt-repository ppa:git-core/ppa
sudo apt-get update
sudo apt-get install git
If add-apt-repository command is not found, install it first with
sudo apt-get install software-properties-common p...
Static method behavior in multi-threaded environment in java
...e method. They might not be running at the same time - it depends how many cores you have on your machine as the JVM maps Java threads to OS threads, which are scheduled onto hardware threads. You therefore have little control over the way these threads interleave without using complex synchronisati...
How expensive is the lock statement?
...on atomic operations and in such case, it avoids calls to operating system core, that is different ring which is not measured by these tests. What is measured as 25ns to 50ns is actually application level interlocked instructions code if lock is not taken
– ipavlu
...
项目管理实践【四】Bug跟踪管理【Bug Trace and Management】 - 项目管理 -...
...，由于下面的二款软件不太熟悉，而且由于最近压力比较大，实在也抽不出时间，所以找了一些相关的资料给大家参考，请大家见谅！
二、BugFree
BugFree是借鉴微软公司软件研发理念、免费且开放源代码、基于Web的精简版缺陷管...
JavaScript data grid for millions of rows [closed]
...g really fast, don't rely on anything that uses jquery to do things in the core, and rather use innerHTML than DOM append. Javascript scrollbars can be noticeable slower than browser scrollbars on slow computers, avoid complex css rules, and you should spend time simplifying the layout of a single r...
How does BitLocker affect performance? [closed]
...
Some practical tests...
Dell Latitude E7440
Intel Core i7-4600U
16.0 GB
Windows 8.1 Professional
LiteOn IT LMT-256M6M MSATA 256GB
This test is using a system partition. Results for a non-system partition are a bit better.
Score decrease:
Read: 5%
Write: 16%
Without BitLo...
Does Parallel.ForEach limit the number of active threads?
...w many threads are used. Parallel Extensions uses an appropriate number of cores, based on how many you physically have and how many are already busy. It allocates work for each core and then uses a technique called work stealing to let each thread process its own queue efficiently and only need to ...
twitter bootstrap navbar fixed top overlapping site
...0px high.
body { padding-top: 70px; }
Make sure to include this after the core Bootstrap CSS.
and in the Bootstrap 4 docs...
Fixed navbars use position: fixed, meaning they’re pulled from the
normal flow of the DOM and may require custom CSS (e.g., padding-top
on the ) to prevent overlap with o...
Validate decimal numbers in JavaScript - IsNumeric()
...etter implementation of this now: github.com/jquery/jquery/blob/master/src/core.js#L230
– Robert Massaioli
Oct 6 '13 at 4:44
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