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MFC CListCtrl使用方法详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...与report风格的listctrl)
dwStyle |= LVS_EX_GRIDLINES;//网格线(只适用与report风格的listctrl)
dwStyle |= LVS_EX_CHECKBOXES;//item前生成checkbox控件
m_list.SetExtendedStyle(dwStyle); //设置扩展风格
注:listview的style请查阅msdn
http...
由12306.cn谈谈网站性能技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Q或是网游相比。但我觉得这两者是不一样的,网游和QQ在线或是登录时访问的更多的是用户自己的数据,而订票系统访问的是中心的票量数据,这是不一样的。不要觉得网游或是QQ能行你就以为这是一样的。网游和QQ 的后端负载...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
LINGO使用指南LINGO使用指南LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建立最优化模型的语言,可以简便地表达大规模问题,利用LIN...
LINGO是用来求解线性和非线性优化问题的简易工具。LINGO内置了一种建...
MFC学习总结 (90个技巧) dlg 上建立View - C/C++ - 清泛网 - 专注C++内核技术
...WINDOWPOS:如果调用进程不拥有窗口,系统会向拥有窗口的线程发出需求。这就防止调用线程在其他线程处理需求的时候发生死锁。
SWP_DEFERERASE:防止产生WM_SYNCPAINT消息。
SWP_DRAWFRAME:在...
How to find the kth smallest element in the union of two sorted arrays?
This is a homework question. They say it takes O(logN + logM) where N and M are the arrays lengths.
17 Answers
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How do I determine k when using k-means clustering?
I've been studying about k-means clustering , and one thing that's not clear is how you choose the value of k. Is it just a matter of trial and error, or is there more to it?
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
...ond, for a "long" message (this is what you get for messages longer than 8 kB). This is with sphlib, a library of hash function implementations in C (and Java). All implementations are from the same author (me) and were made with comparable efforts at optimizations; thus the speed differences can be...
How to replace a hash key with another key
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hash[:new_key] = hash.delete :old_key
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transform object to array with lodash
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What about if you wanted to preserve the key as a property? (in this example, if the id property did not exist and you wanted to create it based on the key of each object.
– Michael Liquori
Mar 7 '16 at 20:02
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How dangerous is it to compare floating point values?
I know UIKit uses CGFloat because of the resolution independent coordinate system.
11 Answers
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