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Modbus硬件控制01——什么是Modbus - 创客硬件开发 - 清泛IT社区，为创新赋能！
本帖最后由 mzb2012 于 2025-06-19 12:37 编辑
Modbus算是嵌入式领域比较经典一种通信协议，不管你是初学者，还是工作多年的工程师，都很有必要了解一下。1.什么是Modbus?1.什么是Modebus它是一个Bus，即总线协议。比如串口协议、IIC...
When should I use ugettext_lazy?
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edited Aug 5 '19 at 10:24
rktavi
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answered Nov 12 '10 at 12:3...
The model backing the context has changed since the database was created
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Matt FrearMatt Frear
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Why is using 'eval' a bad practice?
...̳o̲̳̳n̲̳̳g̲̳̳p̲̳o̲̳̳k̲̳̳e̲̳̳
Jul 4 '10 at 17:23
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Is it possible to use argsort in descending order?
... equal items will get reversed).
Example timings:
Using a small array of 100 floats and a length 30 tail, the view method was about 15% faster
>>> avgDists = np.random.rand(100)
>>> n = 30
>>> timeit (-avgDists).argsort()[:n]
1.93 µs ± 6.68 ns per loop (mean ± std. d...
When to use setAttribute vs .attribute= in JavaScript?
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answered Oct 12 '10 at 21:49
user166390user166390
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Read Excel File in Python
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answered Mar 4 '14 at 11:10
tamasgaltamasgal
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Test PHP headers with PHPUnit
...o.com');
}
}
This will result in:
$ phpunit FooTest.php
PHPUnit 3.6.10 by Sebastian Bergmann.
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Time: 1 second, Memory: 9.00Mb
OK (1 test, 0 assertions)
The key is the @runInSeparateProcess annotation.
If you are using PHPUnit ~4.1 or something and get the error:
PHP Fatal error: Unc...
What are the differences between NP, NP-Complete and NP-Hard?
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nbro
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answered Oct 22 '13 at 6:08
Johnson WongJ...