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转型产品经理必看 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...作者。 今天推荐这篇文章给大家,尤其是准备转型以及转型路上的小伙伴们,希望对你们有帮助,文章比较长,但是值得一看。 放下,是一种修行 拿起,是一种历练 写前面 过去一年,我完成了角色和身份的转变...
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Executing periodic actions in Python [duplicate]

...out 33 iterations. I was running 1 second polls, and this means a drift of 20% in less than a minute. You can reduce drift by calling the threading.Timer at the start of the function rather than at the end, but only if it is function duration that is causing your drift, not timer unreliability. The ...
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How to urlencode data for curl command?

... me in Bash 4.3.11(1). The string Jogging «à l'Hèze» generates Jogging%20%abà%20l%27Hèze%bb that cannot be feed to JS decodeURIComponent :( – dmcontador Nov 19 '15 at 12:07 2...
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无人驾驶汽车大难题 人工智能同人的差距显著 - 资讯 - 清泛网 - 专注C/C++...

...题 人工智能同人的差距显著】看上去,无人驾驶确实是加速向我们的生活驶近,但事实上,首批获得尝试Google无人驾驶汽车机会的美国Medium科技板块总编StevenLevy表示:“我很难相信,无人驾驶汽车的大规模使用会近期到来...
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淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...特点是数据的非实时写入,正因为如此,我们可以认为,一定的时间段内,整个系统的数据是只读的。这为我们设计缓存奠定了非常重要的基础。 图1 淘宝海量数据产品技术架构 按照数据的流向来划分,我们把淘宝数据产...
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When to use enumerateObjectsUsingBlock vs. for

...meration. And enumerateObjectsUsingBlock was the fastest, it was around 15-20% faster than fast iteration. So if you're very concerned about the best possible performance, use enumerateObjectsUsingBlock. But keep in mind that in some cases the time it takes to enumerate a collection is dwarfed by t...
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马化腾给创业者的3点建议:行业跨界领域最有机会诞生创新 - 资讯 - 清泛网 ...

...领域最有机会诞生创新腾讯董事会主席兼CEO马化腾7月19日香港向青年创业者建议,要关注两个产业跨界的部分,因为一个产业已经做得很久,已经是一片红海,我们现...腾讯董事会主席兼CEO马化腾7月19日香港向青年创业者建...
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PHP大潮将至 PHP近年发展分析 - 创意 - 清泛网 - 专注C/C++及内核技术

...展的分析,认为PHP凭借它的简单、开发快速和扩展性强,企业级应用上会有大的发展前景。您觉得呢?说起PHP近几年的发展,可以说是突飞猛进。EDC2006年的统计信息表明PHP已经跻身全球三个编程语言的行列,并且其是以Web...
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CSS hexadecimal RGBA?

... 0C 10% 25.50 19 15% 38.25 26 20% 51.00 33 25% 63.75 3F 30% 76.50 4C 35% 89.25 59 40% 102.00 66 45% 114.75 72 50% 127.50 7F 55% ...
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Is there a way to iterate over a dictionary?

....1+) appears to optimise loop iteration, so the loop approach is now about 20% faster than the block approach, at least for the simple case above. share | improve this answer | ...