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323 views

1 answer

mysql - MySQL错误代码：MySQL Workbench中UPDATE期间的1175错误代码(MySQL error code: 1175 during UPDATE in MySQL Workbench)

I'm trying to update the column visited to give it the value 1. I use MySQL workbench, and I'm writing the statement in the SQL ... (拜托，告诉我有什么问题？) ask by Jury A translate from so...

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

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387 views

1 answer

javascript - 什么是JavaScript中的（function（）{}）（）构造？(What is the (function() { } )() construct in JavaScript?)

I used to know what this meant, but I'm struggling now... (我曾经知道这意味着什么，但是现在我正在努力...) Is this basically saying ... .onload吗？) (function () { })(); ask by Exitos translate from so...

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

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439 views

1 answer

git - 如何更改一个特定提交的提交作者？(How to change the commit author for one specific commit?)

I want to change the author of one specific commit in the history. (我想更改历史记录中一项特定提交的作者 )It's not the last commit. (这不是最后 ... 事情，在这里我通过哈希或短哈希来标识提交 ) ask by MicTech translate from so...

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

0 votes

666 views

1 answer

angular - 在角度服务器中使用延迟加载时，在此服务器上找不到请求的URL(The requested URL was not found on this server while using lazy loading in angular)

after i use lazy loading in my angular projects, it works well in local host but the problem is : when i ... .module#RecruitmentModule" } ]; ask by amir marjani translate from so...

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

0 votes

394 views

1 answer

java - 如何在Java中生成特定范围内的随机整数？(How do I generate random integers within a specific range in Java?)

How do I generate a random int value in a specific range? (如何生成特定范围内的随机int数值？) I have tried the following ... ` can be smaller than `minimum`. ask by user42155 translate from so...

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

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342 views

1 answer

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

As the title suggests, I'd like to select the first row of each set of rows grouped with a GROUP BY . (顾名思义，我想选择以 ... Joe | 5 2 | Sally | 3 ask by David Wolever translate from so...

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

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260 views

1 answer

javascript - JavaScript .prototype如何工作？(How does JavaScript .prototype work?)

I'm not that into dynamic programming languages but I've written my fair share of JavaScript code. (我不喜欢动态编程语言，但是我写了相当一部 ... 幻灯片也确实起到了很大作用 ) ask by John Leidegren translate from so...

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

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350 views

1 answer

sql - 如何在表中找到价值百分比？(How to find percentage of value in table?)

I have a SQL table that contains some of the following data: (我有一个SQL表，其中包含以下一些数据：) ID Name Grade 54 ... 终输出类似于Name1：30％，Name2：40％，Name3：20％等...) ask by Ryan Lenz translate from so...

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

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440 views

1 answer

flutter - 此函数的返回类型为“行”，但不以return语句结尾(This function has a return type of 'Row', but doesn't end with a return statement)

i am trying to retrieve data from firestore as dropdown list, got this tutorial and error show up, please help, totally new ... , ), )); } } ask by learnandro translate from so...

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

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574 views

1 answer

angular - 成功在服务中调用订阅后获取未定义(Getting Undefined after subscribe successfully called in Service)

actually am new in angular and am trying to create an recipe app so here what i have created an recipes service in which ... false) }) }) } ask by Himanshu Rahi translate from so...

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

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478 views

1 answer

c - Windows编译v8时出现pkg-config错误(pkg-config errors on windows compiling v8)

The bounty expires in 16 hours) . 赏金将在16小时后失效) ) Answers to this question are eligible for a +500 reputation ... to `v8::String::Utf8Value::Utf8Value(v8::Local<v8::Value>...

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

0 votes

700 views

1 answer

android-studio - 如何在Android Studio中的“可绘制”文件夹中添加图像？(How to add an image to the “drawable” folder in Android Studio?)

I need to add an image to the res/drawable folder... (我需要将图像添加到res/drawable文件夹...) When I choose new > image asset ... 如何将图像添加到res/drawable文件夹？) ask by Alan Wang translate from so...

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

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370 views

1 answer

android - 如何将库项目添加到Android Studio？(How do I add a library project to Android Studio?)

How do I add a library project (such as Sherlock ABS) to Android Studio ? (如何将库项目（例如Sherlock ABS）添加到Android ... 而是新的Android Studio ）) ask by Alexander Kulyakhtin translate from so...

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

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419 views

1 answer

html - 如何在div中垂直对齐文本？(How do I vertically align text in a div?)

I am trying to find the most effective way to align text with a div. (我试图找到最有效的方法来将文本与div对齐 )I have ... mollit anim id est laborum. </div> ask by shinjuo translate from so...

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

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530 views

1 answer

java - 什么是PECS（生产者扩展了超级消费者）？(What is PECS (Producer Extends Consumer Super)?)

I came across PECS (short for Producer extends and Consumer super ) while reading up on generics. (在阅读泛型时，我遇到了PECS（ ... 解决extends和super之间的混淆吗？) ask by peakit translate from so...

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

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406 views

1 answer

android - 如何在RecyclerView中的项目之间添加分隔线和空格？(How to add dividers and spaces between items in RecyclerView?)

This is an example of how it could have been done previously in the ListView class, using the divider and dividerHeight parameters ... 方法实现我的目标？) ask by EyesClear translate from so...

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

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468 views

1 answer

c++ - 什么时候应该使用static_cast，dynamic_cast，const_cast和reinterpret_cast？(When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?)

What are the proper uses of: (的正确用法是：) static_cast dynamic_cast const_cast reinterpret_cast C-style cast (type)value (C样式转换(type) ... 在特定情况下使用哪个？) ask by e.James translate from so...

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

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240 views

1 answer

bash - 如何在bash脚本中添加数字(How can I add numbers in a bash script)

I have this bash script and I had a problem in line 16. How can I take the previous result of line 15 and add it ... (line16) done echo "$num" done ask by Nick translate from so...

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

0 votes

380 views

1 answer

javascript - 使用jQuery将表单数据转换为JavaScript对象(Convert form data to JavaScript object with jQuery)

How do I convert all elements of my form to a JavaScript object? (如何将表单的所有元素转换为JavaScript对象？) I'd like to ... ').serializeArray();返回的地图) ask by community wiki translate from so...

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

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416 views

1 answer

html - 在div中将图像水平居中(Center image horizontally within a div)

This is probably a stupid question but since the usual ways of center aligning an image are not working I thought I would ask. ... 通常这是焦点所在 ) ask by Jacob Windsor translate from so...

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

0 votes

519 views

1 answer

python - 如何指定表单中字段的顺序？ [django-crispy-forms](How do I specify the order of fields in a form? [django-crispy-forms])

The bounty expires in 7 days) . 赏金将在7天后过期) ) Answers to this question are eligible for a +100 reputation bounty. 这个问题的答案有资格获 ... 并且其中一个站点中的字段顺序再次更改 ) ask by Uri translate from so...

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

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329 views

1 answer

windows - 在Windows中将目录添加到PATH环境变量(Adding directory to PATH Environment Variable in Windows)

I am trying to add C:\xampp\php to my system PATH environment variable in Windows. (我试图将C:\xampp\php添加到Windows中的系统PATH环境变量 ... 目录添加到PATH变量中？) ask by Mp de la Vega translate from so...

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

0 votes

630 views

1 answer

c++ - 是否可以在其范围之外访问局部变量的内存？(Can a local variable's memory be accessed outside its scope?)

I have the following code. (我有以下代码 ) #include <iostream> int * foo() { int a = 5; return &a; } int main() { int* p = ... 的存储不是在其功能之外不可访问的吗？) ask by community wiki translate from so...

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

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413 views

0 answers

sql - SQL Server中的数字，浮点数和小数之间的差异(Difference between numeric, float and decimal in SQL Server)

I searched in Google and also visited decimal and numeric and SQL Server Helper to glean the difference between numeric, float ... 易，为什么？) ask by priyanka.sarkar translate from so...

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

0 votes

415 views

1 answer

java - 关于抽象类方法的快速提问(Quick Question in regards to the Methods in Abstract Classes)

I am a amateur programmer and I recently stumbled upon this special way of overriding a function when studying abstract classes: ... , (谢谢，) ask by Simeon Tran translate from so...

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

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238 views

1 answer

c++ - 为什么std :: vector没有释放方法？(Why std::vector does not have a release method?)

I found myself in a situation where I would have liked to have an analog of unique_ptr 's release() for std::vector<> . (我 ... 种方法让我尴尬地错过了？) ask by Emerald Weapon translate from so...

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

0 votes

368 views

1 answer

kubernetes - Why doesn't the label "version" appear in running pod json?

kubectl get pod pod_name -n namespace_name -o json shows: "labels": { "aadpodidbinding": "sa-customerxyz-uat-msi", "app ... of the custom labels. The label "version" does not show....

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

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302 views

1 answer

python - How to trigger INCRON after file modified by py script executed by apache

I want a simple crontab rule such as : /path/to/file IN_MODIFY echo "Incron triggered" to function on a Linux VM ... , but still not when web modified. Could someone guide me ?...

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

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