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Modbus硬件控制03——485串口助手控制继电器 - 创客硬件开发 - 清泛IT社区...
本帖最后由 mzb2012 于 2025-08-28 21:58 编辑
1.软件准备485串口调试助手，它集成485调试功能，自带CRC校验，非常易于使用。
2.硬件连接
通过USB转485接入PC
3.测试步骤
发送字符串，一共两条指令
第一条是闭合继电器
第二...
Where can I find documentation on formatting a date in JavaScript?
...("dddd, MMMM Do YYYY, h:mm:ss a"); // "Sunday, February 14th 2010, 3:25:50 pm"
a.format("ddd, hA"); // "Sun, 3PM"
(*) lightweight meaning 9.3KB minified + gzipped in the smallest possible setup (feb 2014)
...
How do I get a UTC Timestamp in JavaScript?
... U.S. English locale):
ticks=1409103400661, DateTime=8/26/2014 6:36:40 PM, Date=8/26/2014,
Time=6:36:40 PM
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Append TimeStamp to a File Name
...abc");
}
}
Output :
C:\Users\Fez\Documents\text-2020-01-08_05-23-13-PM.bin
"text-{0:yyyy-MM-dd_hh-mm-ss-tt}.bin"
text- The first part of the output required
Files will all start with text-
{0: Indicates that this is a string placeholder
The z...
Build query string for System.Net.HttpClient get
...ck out the docs for more details. The full package is available on NuGet:
PM> Install-Package Flurl.Http
or just the stand-alone URL builder:
PM> Install-Package Flurl
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Hash function that produces short hashes?
...epending on what the OP is actually doing with it.
– PM 2Ring
Aug 23 '18 at 17:35
2
There is one ...
Make a link use POST instead of GET
...unction DoPost(){
$.post("WhateverPage.php", { name: "John", time: "2pm" } ); //Your values here..
}
</script>
<a href="javascript:DoPost()">Click Here</A>
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How to get highcharts dates in the x axis?
... 1 through 11.
%M: Two digits minutes, 00 through 59.
%p: Upper case AM or PM.
%P: Lower case AM or PM.
%S: Two digits seconds, 00 through 59
http://api.highcharts.com/highcharts#xAxis.dateTimeLabelFormats
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解决Scrapy警告:You do not have a working installation of the service_i...
...目的操作时，出现如下错误：从提示错误来看，我们需要安装一个模块service_identity，根据提示地址（https: pypi python org pypi service_identity）来安装 使用scrapy进行爬虫项目的操作时，出现如下错误：
从提示错误来看，我们需要...
解决Scrapy警告:You do not have a working installation of the service_i...
...目的操作时，出现如下错误：从提示错误来看，我们需要安装一个模块service_identity，根据提示地址（https: pypi python org pypi service_identity）来安装 使用scrapy进行爬虫项目的操作时，出现如下错误：
从提示错误来看，我们需要...