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App Inventor 2 BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编...
...23 - 1（null终止符）
为什么23字节不应硬编码：
1. MTU 是可协商的：BLE 4.2+ 支持协商更大的 MTU（最大512字节）
2. Android BLE 栈自动处理分片：gatt.writeCharacteristic() 会根据协商后的 MTU 自动分片
3. 硬编码过时了：这个值是 BLE 4.0 ...
Reading binary file and looping over each byte
...e, the last 100 and first 100 bytes:
>>> l[-100:]
[208, 5, 156, 186, 58, 107, 24, 12, 75, 15, 1, 252, 216, 183, 235, 6, 136, 50, 222, 218, 7, 65, 234, 129, 240, 195, 165, 215, 245, 201, 222, 95, 87, 71, 232, 235, 36, 224, 190, 185, 12, 40, 131, 54, 79, 93, 210, 6, 154, 184, 82, 222, 80, 14...
What's the (hidden) cost of Scala's lazy val?
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86
This is taken from the scala mailing list and gives implementation details of lazy in terms of ...
Inline SVG in CSS
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Paul D. Waite
86.1k5151 gold badges184184 silver badges258258 bronze badges
answered May 26 '12 at 18:09
RaabRaab
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Explain the concept of a stack frame in a nutshell
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Frame Pointer is also Base Pointer in x86 terms
– peterchaula
Apr 9 '17 at 10:39
1
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VM 磁盘空间扩容引起的一些问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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网上找到的解决方法如下：
按照如下操作 系统提示 是GTP格式 需要使用
解决方案 1、root权限登录到ESXi/ESX
系统的控制台界面下；
执行如下命令抓取磁盘的naa ID：
#esxcfg-scsidevs -l | grep -I naa
执行如下命令启动...
Android: How can I get the current foreground activity (from a service)?
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86
Is there a native android way to get a reference to the currently running Activity from a se...
What does “#define _GNU_SOURCE” imply?
...ypes and things are visible from the headers.
– Spudd86
Apr 7 '11 at 16:45
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How to get the number of characters in a std::string?
...: cca4 cd96 cc9f 6fcc 90cd afcc 9acc 85cd ......o.........
00000050: aacc 86cd a3cc a1cc b5cc a1cc bccd 9a ...............
50 codepoints
LATIN CAPITAL LETTER Z
COMBINING LEFT ANGLE BELOW
COMBINING DOUBLE LOW LINE
COMBINING INVERTED BRIDGE BELOW
COMBINING LATIN SMALL LETTER I
COMBINING LATIN S...
Cross-browser custom styling for file upload button [duplicate]
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codepen.io/sheriffderek/pen/177e86a195b98a2058921e4ef859cd73
– sheriffderek
Feb 18 '14 at 18:12
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