大约有 40,000 项符合查询结果(耗时:0.0545秒) [XML]
Python 3.x rounding behavior
...l.Decimal('3.5').quantize(decimal.Decimal('1'),
rounding=decimal.ROUND_HALF_UP)
>>> Decimal('4')
>>> decimal.Decimal('2.5').quantize(decimal.Decimal('1'),
rounding=decimal.ROUND_HALF_EVEN)
>>> Decimal('2')
>>> decimal.Decimal('3.5').quantize(decimal...
Returning anonymous type in C#
...
32
In C# 7 we can use tuples to accomplish this:
public List<(int SomeVariable, string Another...
How to log PostgreSQL queries?
...
In your data/postgresql.conf file, change the log_statement setting to 'all'.
Edit
Looking at your new information, I'd say there may be a few other settings to verify:
make sure you have turned on the log_destination variable
make sure you turn on the logging_collect...
MFC Dialog中嵌入View、动态创建View的方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的需要手动调一下。代码如下,亲测有效:
//.h
CView *m_pDemoView;
//.cpp 构造函数或OnInitDialog函数
CMainContainer::OnInitDialog() //CDialog才有,像CWnd等没有OnInitDialog可以放在构造函数中,然后OnPaint()函数中改变大小并显示。
{
m_pDem...
How is a CRC32 checksum calculated?
Maybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web.
...
Create a custom event in Java
...en allowed.
– cHao
Jan 23 '14 at 20:32
6
@GlassGhost: The code that uses this is in a constructor...
Get __name__ of calling function's module in Python
...e cases.
>>> sys._current_frames()
{4052: <frame object at 0x03200C98>}
You can then "move up" using f_back :
>>> f = sys._current_frames().values()[0]
>>> # for python3: f = list(sys._current_frames().values())[0]
>>> print f.f_back.f_globals['__file__...
Multiple columns index when using the declarative ORM extension of sqlalchemy
...'table_A'
id = Column(Integer, primary_key=True)
a = Column(String(32), index=True)
b = Column(String(32), index=True)
if you'd like a composite index, again Table is present here as usual you just don't have to declare it, everything works the same (make sure you're on recent 0.6 or 0...
Git: can't undo local changes (error: path … is unmerged)
... answered Jun 11 '10 at 8:09
zed_0xffzed_0xff
28.2k77 gold badges4747 silver badges7070 bronze badges
...
How do I set up curl to permanently use a proxy? [closed]
...ou can make a alias in your ~/.bashrc file :
alias curl="curl -x <proxy_host>:<proxy_port>"
Another solution is to use (maybe the better solution) the ~/.curlrc file (create it if it does not exist) :
proxy = <proxy_host>:<proxy_port>
...