大约有 47,000 项符合查询结果（耗时：0.0288秒） [XML]
C++代码执行安装包静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术
...。1.-----------------------CreateProcess---------------------- PROCESS_INFORMATIO...需求：安装包下载完成后，创建一个子进程自动安装。
1.-----------------------CreateProcess----------------------
PROCESS_INFORMATION pi;
STARTUPINFO si;
memset( &si, 0, ...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...ans the operation can be parallelized.
This distinction is very important for Big Data / MPP / distributed computing, and the entire reason why reduce even exists. The collection can be chopped up and the reduce can operate on each chunk, then the reduce can operate on the results of each chunk - ...
How do I add custom field to Python log format string?
My current format string is:
7 Answers
7
...
Does use of final keyword in Java improve the performance?
...
Usually not. For virtual methods, HotSpot keeps track of whether the method has actually been overridden, and is able to perform optimizations such as inlining on the assumption that a method hasn't been overridden - until it loads a clas...
foreach vs someList.ForEach(){}
...There is one important, and useful, distinction between the two.
Because .ForEach uses a for loop to iterate the collection, this is valid (edit: prior to .net 4.5 - the implementation changed and they both throw):
someList.ForEach(x => { if(x.RemoveMe) someList.Remove(x); });
whereas foreac...
Dictionaries and default values
...
+1 for readability, but if/else is much faster. That might or might not play a role.
– Tim Pietzcker
Jul 6 '13 at 9:20
...
C/C++获取Windows的CPU、内存、硬盘使用率 - C/C++ - 清泛网 - 专注C/C++及内核技术
...且每次触发后自动设置为nonsignaled
while (true)
{
WaitForSingleObject(hEvent, 1000);
res = GetSystemTimes(&idleTime, &kernelTime, &userTime);
__int64 idle = CompareFileTime(preidleTime, idleTime);
__int64 kernel = CompareFileTime(prekernelTime, kernelTime);
__int64 u...
How do I filter ForeignKey choices in a Django ModelForm?
...
ForeignKey is represented by django.forms.ModelChoiceField, which is a ChoiceField whose choices are a model QuerySet. See the reference for ModelChoiceField.
So, provide a QuerySet to the field's queryset attribute. Depen...
Multiple variables in a 'with' statement?
... class test2: x=1; t2=test2() with open('f2.txt') as t2.x: for l1 in t2.x.readlines(): print(l1); # Charlie Parker # tested in python 3.6
– Ahmad Yoosofan
Aug 12 '17 at 8:33
...
Using @property versus getters and setters
...
Prefer properties. It's what they're there for.
The reason is that all attributes are public in Python. Starting names with an underscore or two is just a warning that the given attribute is an implementation detail that may not stay the same in future versions of th...