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[完整源码实例] 修改 CListCtrl 的标题栏字体颜色；重绘 CListCtrl 标题栏 ...
...载自定义Header
CHeaderCtrl *pHeader = m_ListCtrl.GetHeaderCtrl();
if(pHeader == NULL)
return FALSE;
m_HeaderCtrl.SubclassWindow(pHeader->m_hWnd);
m_HeaderCtrl.SetFont(f);
效果：
这个比较简单，但是如果需要设置颜色等其他属性，则需要自绘重画CHeaderC...
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...6/site-packages/django/db/backends
vim __init__.py 在122行处修改
if self.connection is None or not self.is_usable():
注：红色为修改部分
python install.py
修改数据库的timeout时长，如：wait_timeout = 864000
mysql>set global wait_tim...
How to take the first N items from a generator or list in Python? [duplicate]
...tart, stop, step)
Remember, slicing a generator will exhaust it partially. If you want to keep the entire generator intact, perhaps turn it into a tuple or list first, like: result = tuple(generator)
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Remove duplicate dict in list in Python
...aries in the list
t is one of the tuples created from a dictionary
Edit: If you want to preserve ordering, the one-liner above won't work since set won't do that. However, with a few lines of code, you can also do that:
l = [{'a': 123, 'b': 1234},
{'a': 3222, 'b': 1234},
{'a': 123...
Are lists thread-safe?
...r example:
L[0] += 1
is not guaranteed to actually increase L[0] by one if another thread does the same thing, because += is not an atomic operation. (Very, very few operations in Python are actually atomic, because most of them can cause arbitrary Python code to be called.) You should use Queues...
Are there any reasons to use private properties in C#?
...at the C# property construct can also be used with a private access modifier:
16 Answers
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Convert list to dictionary using linq and not worrying about duplicates
...e's the obvious, non linq solution:
foreach(var person in personList)
{
if(!myDictionary.Keys.Contains(person.FirstAndLastName))
myDictionary.Add(person.FirstAndLastName, person);
}
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Is it safe to resolve a promise multiple times?
...erally inadvisable to rely on undocumented behavior even if it works right now.
– 3ocene
Sep 5 '18 at 18:26
ecma-inter...
Is the != check thread safe?
I know that compound operations such as i++ are not thread safe as they involve multiple operations.
8 Answers
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How do I check if a string is valid JSON in Python?
In Python, is there a way to check if a string is valid JSON before trying to parse it?
4 Answers
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