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App Inventor 2 BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节硬编...
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- BluetoothLE.java（2975行）-- 公开API层
- BluetoothLEint.java（3165行）-- 内部实现层
二、核心发现：23字节硬编码限制
2.1 WriteStrings 的写入路径
位于 BLEWriteOperation.write() 方法第678-690行：
if (mClass == String.class) {
byte[]...
How do I convert a Java 8 IntStream to a List?
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edited Mar 11 at 5:57
Basil Bourque
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Lazy Method for Reading Big File in Python?
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12 Answers
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Add missing dates to pandas dataframe
...u could use Series.reindex:
import pandas as pd
idx = pd.date_range('09-01-2013', '09-30-2013')
s = pd.Series({'09-02-2013': 2,
'09-03-2013': 10,
'09-06-2013': 5,
'09-07-2013': 1})
s.index = pd.DatetimeIndex(s.index)
s = s.reindex(idx, fill_value=0)
p...
How to check if object (variable) is defined in R?
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You want exists():
R> exists("somethingUnknown")
[1] FALSE
R> somethingUnknown <- 42
R> exists("somethingUnknown")
[1] TRUE
R>
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Git stash uncached: how to put away all unstaged changes?
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Update 2:
I'm not sure why people are complaining about this answer, it seems to be working pe...
Benchmarking (python vs. c++ using BLAS) and (numpy)
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edited Sep 30 '11 at 18:19
answered Sep 30 '11 at 18:00
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What is the most useful script you've written for everyday life? [closed]
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