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Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...隔。
后台任务要尽可能少的唤醒CPU，譬如IM通信的长连接心跳时间间隔、一些应用的后台定时唤醒时间间隔等要设计合理。
特殊耗电业务情况可以进行弹窗等友好的交互设计提醒用户该操作会耗用过多电量。
可以看...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...以把模型和外部数据比如文本文件、数据库和电子表格等连接起来。
1．@file函数
该函数用从外部文件中输入数据，可以放在模型中任何地方。该函数的语法格式为@file(’filename’)。这里filename是文件名，可以采用相对...
What's the main difference between int.Parse() and Convert.ToInt32
...some web service is handing you an integer in string format), you'd use Int32.Parse().
If you're collecting input from a user, you'd generally use Int32.TryParse(), since it allows you more fine-grained control over the situation when the user enters invalid input.
Convert.ToInt32() takes an objec...
Android adb not found
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On Linux, Android SDK platform-tools package containing adb used to be 32bit. It worked fine on 32bit systems. But on 64bit systems you need to manually install the IA32 library.
For Debian based distributions try this:
sudo apt-get install libc6-i386 lib32stdc++6 lib32gcc1 lib32ncurses5
But...
Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu
I am running the 32bit version of Ubuntu 10.10 and trying to cross compile to a 64 bit target. Based on my research, I have installed the g++-multilib package.
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How do I register a DLL file on Windows 7 64-bit?
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Type regsvr32 name.dll into the Command Prompt (executed in elevated mode!) and press "Enter." Note that name.dll should be replaced with the name of the DLL that you want to register. For example, if you want to register the iexplore.d...
How to install ia32-libs in Ubuntu 14.04 LTS (Trusty Tahr)
...unter the following error. The error seems to be due to the OS lacking the 32-bit architecture support. The error output is as following:
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Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
Windows下如何判断Win32 or x64？MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个常量如何使用呢？看起来简单，其实是很困惑的。 在 Win3...MSDN 里说，VC 有 3 个预处理常量，分别是 _WIN32，_WIN64，WIN32。这三个...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
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I believe the intent was to rename System32, but so many applications hard-coded for that path, that it wasn't feasible to remove it.
SysWoW64 wasn't intended for the dlls of 64-bit systems, it's actually something like "Windows on Windows64", meaning the bits you...
Reading 64bit Registry from a 32bit application
...ows 7, 64 bit and also with Windows 10, 64 bit.
Instead of using "Wow6432Node", which emulates a node by mapping one registry tree into another making it appear there virtually, you can do the follwing:
Decide, whether you need to access the 64 bit or the 32 bit registry, and use it as described...