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Arduino 101 实验12 - 录音与回放 · App Inventor 2 中文网
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PlayPin
录音模块实际插的那个 D 口编号
插 D4 → 填 4
RecordPin
比 PlayPin 大 1 的数字
填 5
⚠️ RecordPin 不对应任何要插线的接口 —— 官方教程原文：
“There isn’t actually another pin you have t...
Make $JAVA_HOME easily changable in Ubuntu [closed]
... shell?
– mlissner
Aug 22 '13 at 18:48
1
another way to not have to run this manually every time ...
How do I remove a substring from the end of a string in Python?
...h and slicing:
url = 'abcdc.com'
if url.endswith('.com'):
url = url[:-4]
Or using regular expressions:
import re
url = 'abcdc.com'
url = re.sub('\.com$', '', url)
share
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How do I parse a string with a decimal point to a double?
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424
double.Parse("3.5", CultureInfo.InvariantCulture)
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Catch multiple exceptions in one line (except block)
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ArtOfCode
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answered Jun 24 '11 at 15:56
mechanical_meatmechanical_meat
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What is an unsigned char?
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edited Oct 24 '14 at 3:42
Deduplicator
40.1k66 gold badges5858 silver badges101101 bronze badges
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Where does Visual Studio look for C++ header files?
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114
Visual Studio looks for headers in this order:
In the current source directory.
In the Additio...
C default arguments
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edited Aug 2 '13 at 20:44
answered Sep 24 '09 at 14:40
E...
How do I “commit” changes in a git submodule? [duplicate]
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430
A submodule is its own repo/work-area, with its own .git directory.
So, first commit/push you...