大约有 511 项符合查询结果(耗时:0.0191秒) [XML]

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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...
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Instagram how to get my user id from username?

... check if its a valid request is by the cookie submitted in the header. If user_id exist in the cookie proeprty, it'll be considered a valid request. Check out the cookie property on the request header when you navigate to the URL shown – Kiong Jul 6 '18 at 15:...
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大数据能否拯救中国足球? - 资讯 - 清泛网 - 专注C/C++及内核技术

...号文”,将体育产业上升为“国家战略”。文件指出,到2025年,中国体育产业总规模将超过5万亿元。而今年4月《中国足球中长期发展规划》的发布不仅意味着2016年将是体育、足球的大年,更意味着中国体育、足球产业将迎来...
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Error handling in getJSON calls

...k, Flask's jsonify f and SQLAlchemy) try: snip = Snip.query.filter_by(user_id=current_user.get_id(), id=snip_id).first() db.session.delete(snip) db.session.commit() return jsonify(success=True) except Exception, e: logging.debug(e) return jsonify(error="Sorry, we couldn't de...
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What does inverse_of do? What SQL does it generate?

...gnment against non existing or invalid entries with validates_presence of :user_id, :role_id, it is useful. You can still generate a User @user with his association @user.role(params[:role_id]) so that saving the user would not result in a failing validation of the Assignment model. ...
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How to show particular image as thumbnail while implementing share on Facebook?

... type of page The URL The websites name A description of the page Facebook user_id's of administrators of the page ( on facebook ) Here is an example ( taken from the facebook documentation ) of some og:tags <meta property="og:title" content="The Rock"/> <meta property="og:type" content=...
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Approximate cost to access various caches and main memory?

... Just for a sake of 2020's review of the predictions for 2025: The last about 44 years of the integrated circuit technology, the classical (non-quantum) processors evolved, literally and physically "Per Aspera ad Astra". The last decade has evidenced, the classical process has got...
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Cannot open database “test” requested by the login. The login failed. Login failed for user 'xyz\ASP

... than not set up as a login. To test if it's set up as a login SELECT SUSER_ID('xyz\ASPNET') -- (**not** SUSER_SID) If NULL CREATE LOGIN [xyz\ASPNET] FROM WINDOWS If not NULL USE test GO SELECT USER_ID('xyz\ASPNET') If NULL USE test GO CREATE USER [xyz\ASPNET] FROM LOGIN [xyz\ASPNET] ...
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离线版启动超时,有报错日志 - App Inventor 2 离线版 - 清泛IT社区,为创新赋能!

...eb] Picked up JAVA_TOOL_OPTIONS: "-Dfile.encoding=UTF-8" May 08, 2025 9:40:04 AM com.google.appengine.init.AppEngineWebXmlInitialParse <init> 信息: appengine runtime jars built on 2024-08-10T22:53:40-06:00 from commit dd4268f5f2cfcfe0ba6a84fff2b6c08cfe5ba548, version 2.0.30-SNAPSHO...
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诺奖得主谈“双创”:让鼓励创业成为一种文化 - 资讯 - 清泛网 - 专注C/C++...

...精神的专项投资基金,推动互联网+的战略以及中国制造2025年的发展战略,还需要从工业化走向创新化的变革。2014~2015上半年,每天大约有一万家企业进行注册,这是让人难以置信的,而且在未来还有很强的上升趋势。但要实现...