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浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术

...时候把23位取出再加 1便可。 -128也是同样的原理,当数据总线从内存中取出的是1000 000 ,CPU会给它再添最高一位,变为1 1000 0000 这样才能转化为 -128输出,不然1000 0000 如何输出?这当然是我的一种推断,具体怎么实现还得...
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When to use EntityManager.find() vs EntityManager.getReference() with JPA

...s issuing many SELECTS (with EclipseLink 2.5.0). – Stéphane Appercel Aug 4 '17 at 14:36 add ...
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唱吧CEO陈华:创业初期不要找最贵的人 - 资讯 - 清泛网 - 专注C/C++及内核技术

...,他们可能想的更对。有时候项目隔一两个月回头一看,数据真好,用户又涨了很多,收入也涨了很多,这就是我要的;如果一个团队每天都缠在里面,花巨大精力,过一两个月发现,结果也不怎么样。这样管理的话,团队没有...
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C++ IDE for Linux? [closed]

... you'd have eventually found the option. – Johan Boulé Jul 20 '10 at 15:54 5 CodeLite is amazing...
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How do I pass variables and data from PHP to JavaScript?

...nswered Jul 18 '14 at 22:00 Jessé CatrinckJessé Catrinck 1,6311414 silver badges2020 bronze badges ...
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微软VS苹果 桌面操作系统的终极一战 - 创意 - 清泛网 - 专注C/C++及内核技术

...在那之后,平台性的应用整合越来越多,从照片流的云端数据同步开始;FaceTime、iMessage的跨平台接受通讯;再到浏览器、办公软件的Hand-off功能,甚至到现在OS X Yosemite用Mac可以借助手机直接拨打电话。OS X的策略十分明确,就是...
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深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术

...一样的话,就会出现乱码问题。 我们的Web系统,从底层数据库编码、Web应用程序编码到HTML页面编码,如果有一项不一致的话,就会出现乱码。 所以,解决乱码问题说难也难说简单也简单,关键是让交互系统之间编码一致。 ...
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Inheriting class methods from modules / mixins in Ruby

...nswered Jul 16 '17 at 10:10 Máté SolymosiMáté Solymosi 4,4191616 silver badges2727 bronze badges ...
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What does WISC (stack) mean? [closed]

LAMP is a well-known acronym for the software/technology bundle/stack representing Linux , Apache , MySQL , PHP . There are a few passing references on the Web that use the acronym WISC to speak of the other (supposedly Microsoft-centric) software/technology bundle/stack in contrast to LAMP...
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Calling generic method with a type argument known only at execution time [duplicate]

...he generic method for all the types in a list... – Stéphane Dec 9 '10 at 10:41 1 ...