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MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...to lock the data directory, so cannot be used
if a mongod is currently accessing the same path
--directoryperdb if dbpath specified, each db is in a separate
directory
--journal enable journaling
-d [ --db ] ...
Stop pip from failing on single package when installing with requirements.txt
...out the -a flag, consider < requirements.txt xargs -n 1 pip install, or if you don't like the redirect at the front, xargs -n 1 pip install < requirements.txt. :-)
– torek
Jul 6 at 17:21
...
How to construct a REST API that takes an array of id's for the resources
...resource.
201 Created
Location: "http://example.com/api/batchtask/1254"
Now client can fetch batch response or task progress by polling
GET http://example.com/api/batchtask/1254
This is how others attempted to solve this issue:
Google Drive
Facebook
Microsoft
Subbu Allamaraju
...
How to manage local vs production settings in Django?
...sed in both, but some of them (like paths to static files) need to remain different, and hence should not be overwritten every time the new code is deployed.
...
Empty set literal?
...
By all means, please use set() to create an empty set.
But, if you want to impress people, tell them that you can create an empty set using literals and * with Python >= 3.5 (see PEP 448) by doing:
>>> s = {*()} # or {*{}} or {*[]}
>>> print(s)
set()
this is b...
[精华]VC++对话框程序打印及打印预览的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
void CMyPrintPreviewDlg::OnButton1()
{
// TODO: Add your control notification handler code here
CMyFrame* pf=new CMyFrame(this);
}
2、增加新类：
用ClassWizard新建CMyFrame类（基类CFrameWnd）,功能上相当于文档/视图的应用程序的框架窗口类
用ClassWizard...
Python: Best way to add to sys.path relative to the current running script
...
If you don't want to edit each file
Install you library like a normal python libray
or
Set PYTHONPATH to your lib
or if you are willing to add a single line to each file, add a import statement at top e.g.
import import_...
Spring RestTemplate - how to enable full debugging/logging of requests/responses?
...
We have been using this technique for about 3 months now. It only works with RestTemplate configured with a BufferingClientHttpResponseWrapper as @sofienezaghdoudi implies. However, it does not work when used in tests using spring's mockServer framework since MockRestServiceS...
What is 'Pattern Matching' in functional languages?
...a functional language, the datatypes that you define are usually what are known as discriminated unions or algebraic data types. For instance, what's a (linked) list? A linked list List of things of some type a is either the empty list Nil or some element of type a Consed onto a List a (a list of...
Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...m
num = num + 1
end
print("sum =",sum)复制代码
if-else分支
if age == 40 and sex =="Male" then
print("男人四十一枝花")
elseif age > 60 and sex ~="Female" then
print("old man without country!")
...