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Android: How can I get the current foreground activity (from a service)?

问题: Is there a native android way to get a reference to the currently running Activity from a service?是否有一种原生的 android 方式可以从服务中获取对当前正在运行的 Activity 的...

今天 13:55
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为什么pycharm建议把method改成static - Why does pycharm propose to change method to static

问题: The new pycharm release (3.1.3 community edition) proposes to convert the methods that don't work with the current object's state to static.新的 pycharm 版本(3.1.3 社区版...

今天 13:40
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无法安装gem-无法构建gem本机扩展-无法加载此类文件-mkmf(LoadError)

问题: Ruby 1.9.3 Ruby 1.9.3 The part of Gemfile Gemfile的一部分 #............... gem "pony" gem "bcrypt-ruby", :require => "bcrypt" gem "nokogiri" #.................. When I'm ...

今天 13:35
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2个列表的公共元素比较 - Common elements comparison between 2 lists

问题: def common_elements(list1, list2): """ Return a list containing the elements which are in both list1 and list2 >>> common_elements([1,2,3,4,5,6], [3,5,7,9]) [3, 5] >>> c....

got
今天 12:58
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foreach 与 someList.ForEach(){} - foreach vs someList.ForEach(){}

问题: There are apparently many ways to iterate over a collection.显然有很多方法可以迭代一个集合。 Curious if there are any differences, or why you'd use one way over the othe...

解释在循环链表中查找循环起始节点是如何工作的? - Explain how finding cycle start node in cycle linked list work?

问题: 我知道乌龟和兔子的会议结束了循环的存在,但是如何将乌龟移动到链表的开头,同时将兔子保持在会合点,然后一次移动一步,使它们在循环的起点相遇? 解决方案: 参考一:https://en....

今天 11:47
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Lambda 捕获作为常量引用? - Lambda capture as const reference?

问题: Is it possible to capture by const reference in a lambda expression?是否可以通过 lambda 表达式中的常量引用进行捕获? I want the assignment marked below to fail, for exam...

c++
今天 11:42
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迭代打字稿地图 - Iterating over Typescript Map

问题: I'm trying to iterate over a typescript map but I keep getting errors and I could not find any solution yet for such a trivial problem.我正在尝试迭代打字稿地图,但我不断收...

What is `1..__truediv__` ? Does Python have a .. (“dot dot”) notation syntax?

问题: I recently came across a syntax I never seen before when I learned python nor in most tutorials, the .. notation, it looks something like this: 我最近遇到了一个我以前从未...

今天 09:24
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Rails new vs create - Rails new vs create

问题: Why is there a need to define a new method in RESTful controller, follow it up with a create method? 为什么需要在RESTful控制器中定义一个新方法,用create方法跟进呢? Goog...

今天 06:17
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为什么构建类型与产品风味不同? - Why are build types distinct from product flavors?

问题: Preface: this is not a question about how to use build types and product flavors in an Android app.前言:这不是一个关于如何在 Android 应用程序中使用构建类型和产品风格的问...

CSS3 过渡事件 - CSS3 transition events

问题: 元素是否会触发任何事件来检查 css3 过渡是否已开始或结束? 解决方案: 参考一:https://en.stackoom.com/question/Bisu 参考二:https://stackoom.com/question/Bisu......

今天 06:02
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将文件路径转换为文件URI? - Convert file path to a file URI?

问题: Does the .NET Framework have any methods for converting a path (eg "C:\\whatever.txt" ) into a file URI (eg "file:///C:/whatever.txt" )? .NET Framework是否有任何方法可以将...

“\ n”和Environment.NewLine之间的区别 - Difference between “\n” and Environment.NewLine

问题: 两者之间有什么区别(如果有的话)(相对于.Net)? 解决方案: 参考一:https://en.stackoom.com/question/4GFK 参考二:https://stackoom.com/question/4GFK......

Cannot install node modules that require compilation on Windows 7 x64/VS2012

问题: I cannot install any of the modules that require compilation. 我无法安装任何需要编译的模块。 All they fail with the following error: 所有这些都失败了以下错误: MSBUILD : ...

Java SafeVarargs annotation, does a standard or best practice exist?

问题: I've recently come across the java @SafeVarargs annotation.我最近遇到了 java @SafeVarargs注释。 Googling for what makes a variadic function in Java unsafe left me rather ...

今天 03:04
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我如何知道哪些自制配方是可升级的? - How can I tell which homebrew formulae are upgradable?

问题: 我知道当我brew update ,它会列出所有==> Updated Formulae ,但是当我在没有运行brew upgrade情况下更新了几次时,我如何获得所有可以升级的应用程序的列表? 解决方案: 参考一:h...

今天 02:39
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用户和SQL Server中的登录名之间的区别 - Difference between a User and a Login in SQL Server

问题: I have recently been running into many different areas of SQL Server that I normally don't mess with.最近,我进入了SQL Server的许多不同区域,而这些区域通常是我所不喜欢的。...

今天 00:31
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如何模拟Android杀死我的进程 - How to simulate Android killing my process

问题: Android will kill a process if it is in the background and the OS decides it needs the resources (RAM, CPU, etc.).如果一个进程在后台并且操作系统决定它需要资源(RAM、CPU 等...

SQL WHERE.. IN 子句多列 - SQL WHERE.. IN clause multiple columns

问题: I need to implement the following query in SQL Server:我需要在 SQL Server 中实现以下查询: select * from table1 WHERE (CM_PLAN_ID,Individual_ID) IN ( Select CM_PLAN_ID, ...

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