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控件重绘函数/消息OnPaint,OnDraw,OnDrawItem,DrawItem的区别 - C/C++ - 清...
...时对控件的绘制，上面介绍的差不多了，还有一个CView的问题，也就是OnPaint和Ondraw的关系，其实这个很简单，CView::OnPaint()的源码如下：
void CView::OnPaint()
{
CPaintDC dc(this);
OnPrepareDC(&dc);
OnDraw(&dc)
}
...
Confirm deletion in modal / dialog using Twitter Bootstrap?
...we want to have delete confirmation for:
<a href="#" data-href="delete.php?id=23" data-toggle="modal" data-target="#confirm-delete">Delete record #23</a>
<button class="btn btn-default" data-href="/delete.php?id=54" data-toggle="modal" data-target="#confirm-delete">
Delete re...
Is there a 'foreach' function in Python 3?
...
Every occurence of "foreach" I've seen (PHP, C#, ...) does basically the same as pythons "for" statement.
These are more or less equivalent:
// PHP:
foreach ($array as $val) {
print($val);
}
// C#
foreach (String val in array) {
console.writeline(val);
}...
“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”
...ON DUPLICATE KEY UPDATE.
If you use INSERT IGNORE, then the row won't actually be inserted if it results in a duplicate key. But the statement won't generate an error. It generates a warning instead. These cases include:
Inserting a duplicate key in columns with PRIMARY KEY or UNIQUE constrain...
What is the minimum valid JSON?
... or a JSONArray as specified by RFC 4627.
snipped
This would mean that all JSON values (including strings, nulls and numbers) are accepted by the JSON object, even though the JSON object technically adheres to RFC 4627.
Note that you could therefore stringify a number in a conformant browser via...
How can I determine the current line number in JavaScript?
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Problem: if you're using PHP, the "source code" seen by javascript is not the original source code, so it has the wrong line numbers. (That's probably what's happening to Hermann.) Does anyone know how to make javascript see the original PHP source c...
How can I convert an image into Base64 string using JavaScript?
...on firefox 35 on some images, the base64 is different from the base64 that php creates on the same image.
– hanshenrik
Mar 6 '15 at 2:39
1
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初创公司如何利用社交媒体实现营销效果最大化？ - 资讯 - 清泛网 - 专注C/C...
...持客户参与度，同时，社交媒体经理也要回复评论、回答问题。
l 分析：分析监控，这包括了销售量分析，粉丝分析，参与度和客户情感分析，这些分析对于优化内容策略，并及时调整公司社交媒体管理战略都是非常重要的。
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C语言之父辞世引发“分号”悼念 - 创意 - 清泛网 - 专注C/C++及内核技术
...要一门高级计算机语言做工具，为了解决程序的可移植性问题，肯·汤普逊和丹尼斯·里奇决定对它进行简单改进，形成 NB语言。但NB在Unix的移植方面依然不尽人意，此后里奇又对NB语言做了改进，C语言诞生。
这被计算机界认为...
Algorithm to randomly generate an aesthetically-pleasing color palette [closed]
...king for a simple algorithm to generate a large number of random, aesthetically pleasing colors. So no crazy neon colors, colors reminiscent of feces, etc.
...