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代码坏味道(总结) - C/C++ - 清泛网 - 专注C/C++及内核技术
...（过长函数）
函数体尽量简短，内聚性要变强。
3.Large Class（过大的类）
类不可太大，不可做太多的事情，应将与该类关联不大或不相关的事情交与其他类或函数处理。
4.Long Parameter List（过长的参数列）
函数...
Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...
...ME=`ls $DIR| grep leveldb | head -n 1 | awk '{print $NF}'`
if [[ $NUM -gt 3 ]];then
rm -rf $DIR/$DIRNAME
echo "---------$DAY----($DIR)-----------------------" >> /tmp/img_cache.log
echo "$DIRNAME Deleted successful" >> /tmp/img_cache.log
fi
if -z -n -f -eq -ne -lt
ATL COM开发入门（二）（ActiveX/COM组件回调JS） - C/C++ - 清泛网 - 专注C/C++及内核技术
...ATL中任意获取网页元素，进行Invoke调用。
定时器采用Win32 API的SetTimer，在回调函数中回调前台js函数，显示计数。
一、ATLDemo.idl 中添加一个新的接口：
BeginTiming函数体：
STDMETHODIMP CAtlDemoIf::BeginTiming(IDispatch* pIDispatch)
{
gI...
Eclipse C++启用pretty printing，更直观显示stl变量内容 - C/C++ - 清泛网...
...
$ cd /home/qpzhou
$ svn co svn://gcc.gnu.org/svn/gcc/trunk/libstdc++-v3/python
2、新建一个gdb命令文件：
$ subl /home/qpzhou/.gdbinit
3、内容如下：
python
import sys
sys.path.insert(0, '/home/qpzhou/python/')
from libstdcxx.v6.printers import register_libstdcxx_printer...
How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?
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answered Oct 28 '10 at 23:35
Matthew SlatteryMatthew Slattery
39.8k55 gold badges9090 silver badges115115 bronze badges
...
How to succinctly write a formula with many variables from a data frame?
... the . identifier.
y <- c(1,4,6)
d <- data.frame(y = y, x1 = c(4,-1,3), x2 = c(3,9,8), x3 = c(4,-4,-2))
mod <- lm(y ~ ., data = d)
You can also do things like this, to use all variables but one (in this case x3 is excluded):
mod <- lm(y ~ . - x3, data = d)
Technically, . means all ...
Python speed testing - Time Difference - milliseconds
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13 Answers
13
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How to export all collections in MongoDB?
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Xavier Guihot
23.7k1414 gold badges132132 silver badges9696 bronze badges
answered May 17 '13 at 9:31
Mentor RekaMen...
Iteration over std::vector: unsigned vs signed index variable
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833
For iterating backwards see this answer.
Iterating forwards is almost identical. Just change ...
How to exclude a directory in find . command
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38 Answers
38
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