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https://www.tsingfun.com/ilife/tech/228.html 

互联网医疗新格局:顶级医生入场 - 资讯 - 清泛网 - 专注C/C++及内核技术

...不到好医生的原因是,互联网问诊多为“头疼脑热”的小问题,最优秀的医生并不愿意花时间。但顶级医生现在也需要一个分诊机制来获得更高质量的患者。 文/温泉 自2013年下半年以来,因一系列政策利好,互联网医疗行业...
https://www.tsingfun.com/ilife/tech/1182.html 

为什么说自媒体到了最危险的时期? - 资讯 - 清泛网 - 专注C/C++及内核技术

...最主要的几点包括盈利模式,与科技自媒体作者的关系等问题。是非对错暂且不论,在这场争论中,不管是支持的,还是反对甚至泼脏水的,各有各的观点。很多人认真的或若有其事的分析着虎嗅的招股书,有人甚至说虎嗅已经...
https://www.tsingfun.com/it/bigdata_ai/343.html 

搭建高可用mongodb集群(四)—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...可用mongodb集群(三)—— 深入副本集》搭建后还有两个问题没有解决:从节点每个上面的数据都是对数据库全量拷贝, 按照上一节中《搭建高可用mongodb集群(三)—— 深入副本集》搭建后还有两个问题没有解决: 从节点...
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How to calculate “time ago” in Java?

...public static void main(String args[]) { System.out.println(toDuration(123)); System.out.println(toDuration(1230)); System.out.println(toDuration(12300)); System.out.println(toDuration(123000)); System.out.println(toDuration(1230000)); System.out.println(toDuration(12300000))...
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Meaning of epsilon argument of assertEquals for double values

...nal double DELTA = 1e-15; @Test public void testDelta(){ assertEquals(123.456, 123.456, DELTA); } If you're using hamcrest assertions, you can just use the standard equalTo() with two doubles (it doesn't use a delta). However if you want a delta, you can just use closeTo() (see javadoc), e.g....
https://www.tsingfun.com/ilife/life/1848.html 

泰迪熊为什么叫泰迪 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...是 San Jose 通过路边 Ask.com 巨大的广告牌抛给我的第一个问题。 广告牌上除了这个问题和巨大的 Ask.com 之外什么也没有。我以前也曾经想过类似的招数,如果我是男生,就把博客里无聊的问题印在T恤上,来钓到好奇心重的女生...
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MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...

...主机名作为名字,如此一来一旦主机名发生改变,就会出问题,所以推荐指定log_bin(从服务器的relay_log存在一样的问题)。 注:sync_binlog,innodb_flush_log_at_trx_commit,innodb_support_xa三个选项都是出于安全目的设置的,不是复制的...
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Why does isNaN(“ ”) (string with spaces) equal false?

... But parseInt("123abcd") returns 123, which means isNaN(parseInt("123abcd")) will return false while it should return true! – Pawan Nogariya Dec 27 '12 at 6:23 ...
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How to initialize a struct in accordance with C programming language standards

...tializer to initialize a structure: MY_TYPE a = { .flag = true, .value = 123, .stuff = 0.456 }; Edit: Other members are initialized as zero: "Omitted field members are implicitly initialized the same as objects that have static storage duration." (https://gcc.gnu.org/onlinedocs/gcc/Designated-In...
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How do I interpret precision and scale of a number in a database?

...efers to the maximum number of digits that are present in the number. ie 1234567.89 has a precision of 9 Numeric scale refers to the maximum number of decimal places ie 123456.789 has a scale of 3 Thus the maximum allowed value for decimal(5,2) is 999.99 ...