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程序员找女朋友的技术攻略:实战篇 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...确需求是很难达到预期效果的。这次,我们来谈谈程序员如何找女朋友,如何找到女朋友,这里有几点战略性的建议: 一、如何搭讪 • 不要害羞 有一部分程序员“天生不够淫荡”,看到女生就会脸红,尤其是自己喜欢的...
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一张图告诉你是需要 SQL 还是 Hadoop - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...己的项目,什么时候用 SQL,什么时候用 Hadoop,它们之间如何取舍?Aaron Cordova 用一张图来回答你这个问题,对于不同的数据场景,如何选取正确的数据存储处理工具进行了详细描述。Aaron Cordova 是美国大数据分析及架构专家,Kov...
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App Inventor 2在不同的屏幕之间传递变量 - App Inventor 2 中文网 - 清泛I...

... 屏幕2的代码如下: 如果有两个变量,该如何操作?6921孙 发表于 2023-01-28 20:23 如果有两个变量,该如何操作? 两种思路: 1、多个变量可以用逗号拼在一起当成一个文本传递过去后,然后使用文本里的函数分...
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jemalloc 接入方法:提高内存使用效率解决内存泄漏 - C/C++ - 清泛网 - 专...

...jemalloc 介绍及编译步骤本文直接略过,仅记录一下C++程序如何接入jemalloc,以及如何确认jemalloc已载入。注:jemalloc是非侵入式的,目标程序无需依赖jemalloc库,只需要在目标 jemalloc 介绍及编译步骤本文直接略过,仅记录一下C++...
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App Inventor 2 计时器(Clock)详细用法示例 · App Inventor 2 中文网

...返回的当前时刻格式化成文本: 24小时格式怎么写? 如何定时一小时? 如何定点执行,比如到20:23分执行? « 返回首页 计时器在界面设计中的哪里? 计时器怎么启动? 默认计时器是自动启用的,也可程序控制它的属...
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Why does Java's hashCode() in String use 31 as a multiplier?

... for 31 since 33 is not a prime: Of the remaining four, I'd probably select P(31), as it's the cheapest to calculate on a RISC machine (because 31 is the difference of two powers of two). P(33) is similarly cheap to calculate, but it's performance is marginally worse, and 33 is composit...
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How to insert a line break in a SQL Server VARCHAR/NVARCHAR string

...NVARCHAR(100) SET @text = 'This is line 1.' + CHAR(13) + 'This is line 2.' SELECT @text This prints out the following: This is line 1. This is line 2. share | improve this answer |...
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MySQL Error 1215: Cannot add foreign key constraint

...the 4th point was my problem. It's kind of nasty - but I'm very very happy mysql did crash for that – Sebas Jun 16 '16 at 15:21  |  show 10 mo...
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What's the best CRLF (carriage return, line feed) handling strategy with Git?

...t diff=html *.css text *.js text *.sql text *.csproj text merge=union *.sln text merge=union eol=crlf *.docx diff=astextplain *.DOCX diff=astextplain # absolute paths are ok, as are globs /**/postinst* text eol=lf # paths that don't start with / are treated relative to the .gita...
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智能手机图形解锁有多少种可能 - 创意 - 清泛网 - 专注C/C++及内核技术

...这个人的个人网站也不错,http://www.matrix67.com/ Android 的密码是 3 × 3 点阵中的一条路径,这条路径可以交叉,可以“走日字”,几乎是无所不能(只要不经过重复点),但却有一个例外:路径不允许跳过途中必须要经过的点...