16892 Developer Q&A Community

asked Feb 5, 2021 in Others[杂七杂八] by ostack (1.4k points)

Welcome to Our Knowledge Sharing Community-Open, Learning,Share

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asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

sql - 在每个GROUP BY组中选择第一行？(Select first row in each GROUP BY group?)

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346 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - 如何在JavaScript中检查未定义的变量(How to check a not-defined variable in JavaScript)

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368 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

c++ - 用于测试Collat??z猜想的C ++代码比手写汇编要快-为什么？(C++ code for testing the Collatz conjecture faster than hand-written assembly - why?)

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503 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - jQuery获取特定的选项标签文本(jQuery get specific option tag text)

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358 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

python - 读取二进制文件并遍历每个字节(Reading binary file and looping over each byte)

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736 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

css - 如何使Bootstrap列都具有相同的高度？(How can I make Bootstrap columns all the same height?)

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285 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

amp-html - 如何隐藏AMP中打开的下拉菜单(How can I hide the opened dropdown in AMP)

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666 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

pandas - 将Pandas数据框中的列表列扩展为单列的快速方法(Fast way to expand a column of lists in pandas data frame to a single column)

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562 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

visual-studio - Visual Studio无法打开包含文件，从路径中删除字符(Visual Studio cannot open include file, drops characters from path)

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709 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

git - Git叉子实际上是Git克隆吗？(Are Git forks actually Git clones?)

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437 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - 代理事件目标上的addEventListener(addEventListener on proxied Event Target)

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361 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

python - 为什么变量`input`在Python语法标记中经常被标记为特殊？(Why is the variable `input` often marked special in Python syntax markers?)

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400 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

c - malloc和calloc之间的区别？(Difference between malloc and calloc?)

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431 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - 如何检查复选框是否已选中？(How can I check if a checkbox is checked?)

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361 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

python - 日期时间戳不能正确读取为字符串(DateTime stamp not reading correctly as string)

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506 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

git - .gitignore和.gitkeep有什么区别？(What are the differences between .gitignore and .gitkeep?)

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464 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

php - PHP中的单引号和双引号字符串有什么区别？(What is the difference between single-quoted and double-quoted strings in PHP?)

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591 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

windows - 安装问题反应本机(Problems installing react native)

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342 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - 您如何获得JavaScript时间戳？(How do you get a timestamp in JavaScript?)

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282 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

excel - 在VBA中置换矩阵时遇到问题（Excel）(Having problems permutating an matrix in vba (Excel))

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518 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

android - 如何确定片段何时在ViewPager中可见(How to determine when Fragment becomes visible in ViewPager)

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196 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

python - 正则表达式与python中的预期输出不匹配[重复](Regex does not match expected output in python [duplicate])

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543 views 1 answer

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

javascript - 使用Node.js require与ES6导入/导出(Using Node.js require vs. ES6 import/export)

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270 views 1 answer

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

python - Need help Dynamically resizing my text to fit in the tkinter canvas

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459 views 1 answer

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

gtag.js - How to set up click tracking by CSS ID in Google Analytics 4?

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314 views 1 answer

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

python - Is there a way to use the API to schedule a Live Stream Broadcast and add it to an existing playlist and specify the stream key?

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457 views 1 answer

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

java - How should I work with multiply(large numbers) entities storred in multiply db tables using jdbc? Mapping entities

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168 views 1 answer

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

Spring Boot CORS issue

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427 views 1 answer

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