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Makefile经典教程（入门必备） - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
...然，我样同样可以为某个目标设置局部变量，这种变量被称为“Target-specific Variable”，它可以和“全局变量”同名，因为它的作用范围只在这条规则以及连带规则中，所以其值也只在作用范围内有效。而不会影响规则链以外的全...
Arduino控制RGB三色LED灯实验、程序代码、连线图、仿真 - 创客硬件开发 - ...
...通过PWM来控制的。RGB三基色按照不同的比例相加合成混色称为相加混色，除相加混色法之外还有相减混色法。
PWM控制PWM,即脉冲宽度调制，是英文“Pulse Width ModulaTIon”的缩写。根据相应载荷的变化来调制晶体管基极或MOS管栅极...
LEGO EV3 机器人按键控制 · App Inventor 2 中文网
...于机器人的相对两侧即可。
这种类型的机器人底座被称为差分驱动平台（Differential Drive Platform）。因为机器人的行为可以根据电机速度轻松调整：
前进：两个电机以相同速度移动
右转：左电机比右电机移动稍慢
左转：...
What optimizations can GHC be expected to perform reliably?
...has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances.
...
What is the difference between quiet NaN and signaling NaN?
...unit (FPU) or library if floating-point is implemented in software. A signalling NaN will produce a signal, usually in the form of exception from the FPU. Whether the exception is thrown depends on the state of the FPU.
C++11 adds a few language controls over the floating-point environment and pr...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
...用TCP/IP协议进行网络通信的DLL是Wsock32.dll，它所提供的API称为Socket API；专用于电话服务方面的API称为TAPI（Telephony API），包含在Tapi32.dll中，所有的这些DLL提供的函数组成了现在使用的Win32编程环境。
调用API
和在DOS中用中断...
Method Resolution Order (MRO) in new-style classes?
...ject'>)
with A forced to come in resolution order only once and after all of its subclasses, so that overrides (i.e., C's override of member x) actually work sensibly.
It's one of the reasons that old-style classes should be avoided: multiple inheritance with "diamond-like" patterns just doesn...
Catching an exception while using a Python 'with' statement
... print 'oops'
If you want different handling for errors from the open call vs the working code you could do:
try:
f = open('foo.txt')
except IOError:
print('error')
else:
with f:
print f.readlines()
...
关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... Socket 来说，应该说能同时处理多个连接的模型都应该被称为多路复用，目前比较常用的有 select/poll/epoll/kqueue 这些 IO 模型（目前也有像 Apache 这种每个连接用单独的进程/线程来处理的 IO 模型，但是效率相对比较差，也很容易出...
Iterate over model instance field names and values in template
...f that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the value of that field in the second column.
...