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)

r - 如何将数据框列转换为数字类型？(How to convert a data frame column to numeric type?)

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346 views 1 answer

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

java - 按属性对自定义对象的ArrayList进行排序(Sort ArrayList of custom Objects by property)

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644 views 1 answer

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

java - 我应该使用哪个@NotNull Java注释？(Which @NotNull Java annotation should I use?)

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397 views 1 answer

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

html - 如何在Notepad ++中自动设置格式/缩进XML / HTML(How To Auto-Format / Indent XML/HTML in Notepad++)

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

java - java.lang.VerifyError：验证程序拒绝类。代码在调试模式下可以正常工作，但在发布模式下不会抛出此错误(java.lang.VerifyError: Verifier rejected class. Code working fine in debug mode, but not throwing this error in release mode)

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804 views 1 answer

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

css - SCSS和Sass有什么区别？(What's the difference between SCSS and Sass?)

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509 views 1 answer

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

vim - 如何在Vim中移动到行尾？(How do I move to end of line in Vim?)

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277 views 1 answer

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

node.js - 为什么突然出现错误“找不到gulpfile”？前几天在工作(Why suddenly got the error “No gulpfile found”? Was working a few days ago)

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467 views 1 answer

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

javascript - 如何检查JavaScript中的空值？(How do I check for null values in JavaScript?)

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232 views 1 answer

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

twitter-bootstrap - 如何使我的Twitter Bootstrap按钮正确对齐？(How can I get my Twitter Bootstrap buttons to right align?)

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498 views 1 answer

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

asp.net - Http错误503服务不可用(HTTP Error 503, the service is unavailable)

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389 views 1 answer

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

python - 如何检查变量的类型是否为字符串？(How to check if type of a variable is string?)

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394 views 1 answer

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

c++ - push_back和emplace_back(push_back vs emplace_back)

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275 views 1 answer

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

visual-studio - 在Visual Studio中使用Git [关闭](Using Git with Visual Studio [closed])

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279 views 1 answer

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

c# - 在C＃中样式化列表框项目，而无需更改项目本身(Style listbox items in c# without changing the item itself)

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478 views 1 answer

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

android - 如何在TextView中将文本水平和垂直居中？(How do I center text horizontally and vertically in a TextView?)

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516 views 1 answer

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

sql - 在SQL Server中将日期格式转换为DD / MMM / YYYY格式(Convert Date format into DD/MMM/YYYY format in SQL Server)

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601 views 1 answer

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

jquery - 如何在jQuery中选择具有多个类的元素？(How can I select an element with multiple classes in jQuery?)

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374 views 1 answer

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

android - android.os.FileUriExposedException：file：///storage/emulated/0/test.txt通过Intent.getData（）在应用程序之外公开(android.os.FileUriExposedException: file:///storage/emulated/0/test.txt exposed beyond app through Intent.getData())

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457 views 1 answer

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

java - 如何使用Java将字符串保存到文本文件？(How do I save a String to a text file using Java?)

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346 views 1 answer

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

python - 用于在带有数字列表的pd.DF中缩放数字的功能(Function for scaling numbers in a pd.DF with a list of numbers)

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260 views 1 answer

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

css - 如何禁用文本选择突出显示(How to disable text selection highlighting)

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412 views 1 answer

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

c++ - 修剪std :: string的最佳方法是什么？(What's the best way to trim std::string?)

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226 views 1 answer

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

http - REST中的PUT与POST(PUT vs. POST in REST)

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325 views 1 answer

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

bash - 如何在执行外壳命令时回显它们(How to echo shell commands as they are executed)

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491 views 1 answer

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

git - 在git中可视化分支拓扑(Visualizing branch topology in git)

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443 views 1 answer

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

python - 检查字典中是否已存在给定键(Check if a given key already exists in a dictionary)

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468 views 1 answer

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

linux - Nagios中的Perl正则表达式检查(Perl regex in Nagios check)

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428 views 1 answer

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