Recent questions in Technique[技术]

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impdp导库的时候卡在这里不动了咋整啊

...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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258 views

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c# - Unity 2D Quiz multiple errors throughout

The errorsTrying to create a simple 2D quiz with added effects, but keep encountering errors when developing it. i have included ... = questions.ToList<Question>(); } } } Thanks....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Unsafe类能否获取一个独立对象的offset(这个对象不是某个其他对象的field)?

如题: Unsafe类能否获取一个独立对象的offset(这个对象不是某个其他对象的field)? 比如这个普通类User, 有一个对象: @Data public class User { private String name; private int age; ... 地址? 或者, 有没有什么办法可以直接把u传入一个方法, 永久改变他的引用值?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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这个vue多语言的错误怎么也修复不了

vue-router.esm.js?8c4f:1905 TypeError: Cannot read property '_t' of undefined at Vue.eval (vue-i18n.esm.js?a925:179) at ... esm.js?8c4f:1984) at step (vue-router.esm.js?8c4f:1714)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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382 views

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webpack打包的时候，less-loader花费了很多时间，怎么优化

这个vue项目不是很大，但是不知道为什么花费这么长的时间...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Custom Grid view using FlatList in Reat Native using json data?

Actually,I want to create a grid view using the FlatList. I have a read lot of solutions they all are creating the view by the ... React.Fragment> ) : null} </View> </Card> ); };...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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blockchain - Create channel in hyperledger fabric

We have using this cmd for creating channel as: $ ./network.sh up createChannel -c mychannel -ca But, We got this ... new in hyperledger fabric. What is solution of above issue???...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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amazon ec2 - Allure report not generating on AWS Ubuntu Jenkins

Added plugin of allure to jenkins In Post build publish allure reports done with allure-results as target/allure- ... and target/allure-report still empty allure report displayed....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to merge field names in django admin?

I want to merge field names of a model in Django admin, In my case I have multiple roles for the ... request.user obj.save() admin.site.register(ParentRole, ParentRoleAdmin)...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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javascript - Getting error Uncaught ReferenceError: firebase is not defined

I have tried too many things and read too many documents but can't find the solution My html:- <html> <head> < ... pasted some other scripts to html as they where written in Docs...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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316 views

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python - Count how many times a value is exceeded in a list

in a Python list, I need to count how many times a value is exceeded. This code counts how many values exceed ... I collapse consecutive values, such that 2 is returned instead?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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506 views

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vue如何实现在线excel编辑预览功能

请问各位大神如何实现在线边编辑excel...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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289 views

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c++ - Node NAPI Aync Workers aren't receiving the right string

I'm currently trying to build an native module with an function that has 2 parameters: a string and a callback. This ... Promise.all(promises); console.log(responses) } main();...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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196 views

1 answer

es6改变数组对象key对应的值

let arr = [ { a:'13', b:'b1', d:'d1' }, { a:'13', c:'c1' } ] 怎么把数组对象中所有key为a的值除以100，变成如下 let arr = [ { a:'0.13', b:'b1', d:'d1' }, { a:'0.13', c:'c1' } ]...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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计算 [1, n] 区间范围内完全平方数的数量

计算 [1, n] 区间范围内完全平方数的数量，经常看到大佬直接开放，即： ` sqrt(n) ` 请问这样做的原理是什么呢？为什么 sqrt(n) 等于 [1, n] 区间内完全平方数的数量？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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919 views

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chatterbot unexpected default behaviour

This stripped-down example finds a perfect match to the?first input,?but treats it as repetition?to be ignored with no ... Good morning!" as a response to "Good morning! Greetings!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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211 views

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How come "flutter create ." adds desktop support?

I created a Flutter project within Android Studio, and then later found out that Flutter supports desktop. After searching the ... ? How come that . means "adding desktop support"?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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498 views

1 answer

vue使用渲染函数onClick不工作。

【已解决】看英文文档吧没问题中文的更新不及时在线演示 https://codesandbox.io/s/autu... 使用官方文档的这种方式，没效果 app.component(" ... this.doThisOnceInCapturingMode, once: true, capture: true, }, }), ]); }, });...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

1 answer

laravel修改用户模块的密码验证

手动更改laravel8 自带的用户密码验证目的是想让用户可以同时输入emial 或者 name 来进行登录操作如下：手动创建 EloquentUserProvider 代码如下： class EloquentUserProvider extends ... 请大家帮忙检查一下代码是否存在问题，以及提出更好的修改方式谢谢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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407 views

1 answer

Color Invariants usage with Python OpenCV

I'm trying to find the color invariants of a photo. I searched it and found that I need to find the value of c1 as ... what should I do or is my method of finding this c1 correct?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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517 views

1 answer

vscode打开之前操作过的文件会自动定位到上次操作的位置，如何取消？

在300行操作完A文件关闭；全选B文件里面的代码然后关闭。 .... 之后继续操作别的文件（不涉及A，B文件），期间打开关闭过vscode 然后再打开A文件，他会定位到300行位置，再打开B文件会是全选状态，我觉得很麻烦，搜索也没有找到方法，不知道能不能取消这个记住上次操作文件位置的功能？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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elementui Cascader级联选择器开启可搜索功能

elementui的级联选择器开启可搜索功能之后，我想在输入内容之后不选，接着失去焦点在输入框中保留输入的值，但是组件似乎默认是失去焦点就清空输入框中的值，请问如何保留？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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385 views

1 answer

请问一下有没有C++ API的IO错误代码手册

我在用DolphinDB C++ API时运行conn.run时出现了如下图所示的错误：Failed to read message from the sokcket with IO error type 13。请问这type 13表示什么意思？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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613 views

1 answer

makefile - C: compiling with -D in make file

Hi i'm having issues while compiling my c program. I'm using Makefile to compile it. this is my make file : # flags ... h" // error I'm familiar with makefile , anynone can help?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

1 answer

reactjs - Customize existing component with fixed css classes in React

I'm using react-calendar in my project, and it uses a plain CSS stylesheet (basically you import it in your ... active:enabled:focus { background: {prop.backgroundColor}; } Thanks!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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514 views

1 answer

java - How to split and concatenate the string in xslt

I am trying to split the string when character is in uppercase n later concatenate with space. For example:-- Given:-- <test> ... > <Xsl:value-of select= "concat(?)"/> </final>...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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814 views

1 answer

element-ui的el-input从vuex的state中获取value值后，输入框无法编辑？

我想在el-input框中输入值，然后监听变化并传到state中，一开始使用的是@change，但是没有变化看了文档后改用input，但是无法改变文本框的内容，代码如下： <el-input placeholder="请输入内容" class=" ... 输入数字的时候console.log还是原来的内容，但是输入输入拼音的时候可以监听到变化页面截图...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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675 views

1 answer

java - Spring boot 404 error Not found error in multi module project

I'm trying to run my first spring boot multi-module project. by calling from postman http://localhost:8080/ ... Modules dependencies to make this code working Thank in advance!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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