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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...
How to search a string in multiple files and return the names of files in Powershell?
...ull syntax and the bottom shows terse syntax.
Item (2) is a more concise form of the answers from Jon Z and manojlds, while item (1) is equivalent to the answers from vikas368 and buygrush.
List FileInfo objects for all files containing pattern:
Get-ChildItem -Recurse filespec | Where-Object { ...
Searching for UUIDs in text with regex
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Version 4 UUIDs have the form xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is any hexadecimal digit and y is one of 8, 9, A, or B. e.g. f47ac10b-58cc-4372-a567-0e02b2c3d479.
source: http://en.wikipedia.org/wiki/Uuid#Definition
Therefore, this is t...
Get property value from string using reflection
I am trying implement the Data transformation using Reflection 1 example in my code.
22 Answers
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libxml/tree.h no such file or directory
...r/lib/libxml2.dylib and for the iPhone, you'll
want the
/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.0.sdk/usr/lib/libxml2.dylib
version.
Since libxml2 is a .dylib (not a nice friendly .framework) we still
have one more thing to do. Go to the Project build settings
...
How to convert list of key-value tuples into dictionary?
..., but rather a 1916-length iterable.
Once you actually have a list in the form you stated in your original question (myList = [('A',1),('B',2),...]), all you need to do is dict(myList).
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MySQL: ignore errors when importing?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
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How do I make a batch file terminate upon encountering an error?
...rrorlevel%
I have used this type of thing in the past for a multiple platform continuous integration script.
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How to use index in select statement?
...sed if the assumed cost of using the index, and then possibly having to perform further bookmark lookups is lower than the cost of just scanning the entire table.
If your query is of the form:
SELECT Name from Table where Name = 'Boris'
And 1 row out of 1000 has the name Boris, it will almost ce...
What is the proper way to format a multi-line dict in Python?
...o write a multi-line dict in my code. There are a couple of ways one could format it. Here are a few that I could think of:
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