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BLE(一)概述&工作流程&常见问题 - 创客硬件开发 - 清泛IT社区,...

...过程当中的一次颠覆性改变。与前面几代不同的是,蓝牙4.0版引入的BLE协议更注重功耗问题,而非通信速率的提升。这也使得低功耗蓝牙更加节能,能使设备的电池维持很长时间,因此在很多可穿戴设备中得到了应用。 0x2 BLE工...
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How can I use functional programming in the real world? [closed]

... 41 It seems like the book Real World Haskell is just what you're looking for. You can read it free...
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IndexOf function in T-SQL

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What are the most common font-sizes for H1-H6 tags [closed]

...this: IE7 IE8 FF2 FF3 Opera Safari 3.1 H1 24pt 2em 32px 32px 32px 32px H2 18pt 1.5em 24px 24px 24px 24px H3 13.55pt 1.17em 18.7333px 18.7167px 18px 19px H4 n/a n/a n/a n/a n/a ...
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UNIX export command [closed]

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Sorting a set of values [closed]

... set(['0.000000000', '0.009518000', '10.277200999', '0.030810999', '0.018384000', '4.918560000']) >>> sorted(s) ['0.000000000', '0.009518000', '0.018384000', '0.030810999', '10.277200999', '4.918560000'] Note that sorted is giving you a list, not a set. That's because the whole point of...
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Weird behavior with objects & console.log [duplicate]

... answered May 2 '14 at 13:25 zzzzBovzzzzBov 151k4646 gold badges293293 silver badges334334 bronze badges ...
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这个富有的袖珍小国 7万美元出租整个国家 - 创意 - 清泛网 - 专注C/C++及内核技术

...欧洲中部有一个小国家,位于奥地利和瑞士之间,2011年4月决定将出租整个国家,每晚的租金是7万美元(约42.5万人民币)。临时拥有者会在议会... 在欧洲中部有一个小国家,位于奥地利和瑞士之间,2011年4月决定将出租整个国家...
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64 bit OS下int占几个字节? - C/C++ - 清泛网 - 专注C/C++及内核技术

64 bit OS下int占几个字节?int固定4字节,不要受64 bit的混淆。int是由编程语言设计决定的,不受编译器的影响。__int64才是8位的。另外,指针是受编译器 OS影响的,3...int固定4字节,不要受64 bit的混淆。int是由编程语言设计决定的...
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Android RoundRectShape圆角矩形使用详解 - C/C++ - 清泛网 - 专注C/C++及内核技术

...gle, pass null. //一个包含8个弧度值,指定外部圆角矩形的 4个角部的弧度及 :new float[] {l, l, t, t, r, r, b, b}; // 前2个 左上角, 3 4 , 右上角, 56, 右下, 78 ,左下,如果没弧度的话,传入null即可。 inset A RectF that specifies the d...