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How to use sed to replace only the first occurrence in a file?

...the 0 with a 1, so: sed '1,/RE/s//to_that/' file – mhost Oct 5 '14 at 1:24 13 Could somebody plea...
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Excel Date to String conversion

... formats: see Guidelines for date and time formats on this page office.microsoft.com/en-us/excel-help/… – codea Sep 9 '13 at 21:07 ...
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Detect iPad Mini in HTML5

... more ways than we'd want. In JavaScript, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success. ...
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Copy paste text into iOS simulator

...ator's clipboard. They are not the same. The simulator is simulating an iOS device, with it's own iOS clipboard which apps running on that device (simulator) use via the iOS pup-up select-all/copy/paste UI items. Completely separate from that: your mac has it's own clipboard and content. The Simu...
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How do I get my C# program to sleep for 50 msec?

... There are basically 3 choices for waiting in (almost) any programming language: Loose waiting Executing thread blocks for given time (= does not consume processing power) No processing is possible on blocked/waiting thread Not so precise Tight waiting (also called tight...
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LEGO EV3 机器人按键控制 · App Inventor 2 中文网

... 1. 应用设置 2. 连接步骤 3. 控制操作 4. 断开连接 开发要点 蓝牙通信 电机控制 用户体验 技术规格 扩展建议 功能...
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Visul C++中CList用法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...承了CObject类,在使用CList时,需要将用户自定义的类实现操作符=的重载,否则系统将会报错。以下举一简单的CNode例子,使之实现操作符=的重载: class CNode : public CObject { public: CPoint point; CNode() { point.x = ...
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C++读写EXCEL文件方式比较 - C/C++ - 清泛网 - 专注C/C++及内核技术

...是特别的难。 其基本方法都是使用导出的.h文件进行OLE操作,但是由于OLE的接口说明文档不多,想非常完美的使用她们也不是太容易,好在例子也很多。 网上普遍认为OLE速度慢,EXCEL的OLE读写方式也基本一样。但是读取速度可...
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MFC非客户区完美自绘(标题栏,边框,标题按钮)例子 - C/C++ - 清泛网 - 专...

...自绘是很多初学者最苦恼的问题,目前网上的例子要么是系统默认的标题按钮时不时的会重现出来,要么是影响了窗口非客户区原来默认的行... 标题栏自绘是很多初学者最苦恼的问题,目前网上的例子要么是系统默认的标题...
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什么是 Ringbuffer ? - C/C++ - 清泛网 - 专注C/C++及内核技术

...环。 要找到数组中当前序号指向的元素,可以通过mod操作: sequence mod array length = array index 以上面的ringbuffer为例(java的mod语法):12 % 10 = 2。很简单吧。 事实上,上图中的ringbuffer只有10个槽完全是个意外。...