大约有 1,900 项符合查询结果(耗时:0.0184秒) [XML]

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淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...的也是让请求落到不同的集群中。 数据隔离。秒杀所调用的数据大部分都是热数据,比如会启用单独cache集群或MySQL数据库来放热点数据,目前也是不想0.01%的数据影响另外99.99%。 当然实现隔离很有多办法,如可以按照用...
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How to convert a PNG image to a SVG? [closed]

...nm # PNG to PNM potrace file.pnm -s -o file.svg # PNM to SVG Explain options potrace -s => Output file is SVG potrace -o file.svg => Write output to file.svg Example Input file = 2017.png convert 2017.png 2017.pnm Temporary file = 2017.pnm potrace 2017.pnm -s -o 2017.svg ...
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How to capitalize the first letter in a String in Ruby

...want it to, it outputs мария instead of Мария. If you're using Rails there's an easy workaround: "мария".mb_chars.capitalize.to_s # requires ActiveSupport::Multibyte Otherwise, you'll have to install the unicode gem and use it like this: require 'unicode' Unicode::capitalize("м...
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Detecting iOS / Android Operating system

...dow.opera; // Windows Phone must come first because its UA also contains "Android" if (/windows phone/i.test(userAgent)) { return "Windows Phone"; } if (/android/i.test(userAgent)) { return "Android"; } // iOS detection from: http://stackoverflow.com/a/90...
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【精心整理】【实用】visual C++中最常用的类与API函数 - C/C++ - 清泛网 -...

... CButton::DrawItem 重载该函数绘制一个CButton对象,由框架调用该函数 virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct); 参数:lpDrawItemStruct指向包含绘制项信息和要求类型的LPDRAWITEMSTRUCT结构的长指针 CButton::SetCheck 设置或复位单选...
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Detect iPad users using jQuery?

...ption is incorrect as iOS apps can and do customize their user agent. The main offender here is Facebook. Compare these user agent strings from iOS devices: # iOS Safari iPad: Mozilla/5.0 (iPad; CPU OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.4...
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How can I concatenate two arrays in Java?

...files where some of the facilities like those mentioned by Antti are not available. – kvn Feb 7 '11 at 15:46 4 ...
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iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...中断。 调试输出如下: 同时,还可以查看某个函数被调用的次数,设置Action参数如下,注意要选中Automatically continue after evaluating actions. 输出结果如下: 【3.异常断点】 断点的功能不限于上面所述。开发iOS知道,如果我...
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乐视全员合伙人制的背后 - 资讯 - 清泛网 - 专注C/C++及内核技术

...计划的制定过程复杂,历时半年,经过数十次方案论证与模型优化才最终成型。 上述人士称,在解决上述问题的过程中,乐视一直坚持了四个原则,就是希望给予员工“最具‘合伙人’精神的激励计划”、“最慷慨的激...
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浅谈APM在电子交易系统中的应用 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ase dt_manager_log-select 语句。还有更详细的的,看看是怎么调用的 清晰的看到具体的语句,是怎么调用, 很明显这就是一个查询语句而查询的速度这么慢肯定是不正常的 接下来这条语句是怎么执行的 这条...