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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
...的甚至是几十年）作为专业软件工程师的工作经验。我的问题是，如果他们现在回过头去，哪些技能和知识是他们第一次以写代码为生的时候就希望能够掌握的。无论你是一个刚毕业刚开始自己第一份开发工作的大学生，还是年...
提升速度：XP注册表与驱动优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...件来提升Windows XP的运行速度!
注册表优化方案
1、启用CPU L2 Cahce
到注册表HKCU_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemory Management下，新建Dword值:
SecondLevelDataCache，修改这个值为你的CPU的二级缓存的大小，填写的时候使用...
代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...不好恢复老版本不验证了）
--------
怀疑 kawa Scheme 生成问题，更新新版本试试。（也不容易更新）
https://community.appinventor.mi ... or-d8-failed/141334
Profiling Django
...he Debug Toolbar made things process. My sql queries were small (30ms) but cpu time was very high (800ms). Another page i was tuning had sql times of 300ms, and cpu time of 8000ms - so i kept trying to find the source of the problem. Turning Django Toolbar off sped things right up. 3 years later, st...
C++字符串截断时中文的处理问题（中文被截断怎么处理？） - c++1y / stl - ...
// 防止后台错误消息中汉字双字节被截断出现乱码
if (pRspMsg->RspMsg.buf[pRspMsg->RspMsg.Length() - 2] & 0x80)
pRspMsg->RspMsg.buf[pRspMsg->RspMsg.Length() - 2] = 0;
一个字节和0x80与运算（& 0x80 ）是否...
Echarts透明背景及兼容问题 - 用户反馈 - 清泛IT社区，为创新赋能！
用户反馈wxbit导入失败：高德地图，启动画面等导致。
Echart是自己导入及实现的，背景透明没有效果，最终WebViewPlus拓展解决了。
方法一:
var option={
backgroundColor:'rgba(128, 128, 128, 0.1)' //rgba设置透明度0.1
}
方法二:
va...
低效程序员的7个坏习惯 - 创意 - 清泛网 - 专注C/C++及内核技术
...le的Charles解释道，“低效的工程师会错误地表征用户体验问题为其他人的问题。”
遗憾的是，似乎很多软件工程师都持有这种态度，这也是为什么企业要寻求能够移情和了解他人问题的代码战士。 “雇主正在竭力寻找那些拥有...
AtomicInteger lazySet vs. set
...ill see it at the next read, because the cache coherence protocol of intel cpu will garantee LazySet works, but the cache line will be updated at the next read, again, the CPU has to be modern enough.
http://sc.tamu.edu/systems/eos/nehalem.pdf
For Nehalem which is a multi-processor platform, the pr...
opengl: glFlush() vs. glFinish()
... spec. The general intent of glFlush() is that after calling it, the host CPU will have no OpenGL-related work to do -- the commands will have been pushed to the graphics hardware. The general intent of glFinish() is that after it returns, no remaining work is left, and the results should be avail...
How do I prevent an Android device from going to sleep programmatically?
...PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");
wl.acquire();
// screen and CPU will stay awake during this section
wl.release();
There's also a table on this page that describes the different kinds of wakelocks.
Be aware that some caution needs to be taken when using wake locks. Ensure that you ...