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flutter convert text field code in class and constructor for state less widget

I am new to flutter. I want to convert Text Field widget in class as like below syntax. class MyTextField extends ... white, style: BorderStyle.solid, width: 4)), )),...

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

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flutter 在某些型号的手机下滚动掉帧!?

据我最近测试发现,我的华为p40pro下用flutter打包的app滚动会掉帧,并且只要是跟手势相关的移动行为都存在掉帧行为,我用的是打包后的release版本,不是debug,百度了一下,似乎一加也存在类似问题.有没有大佬遇到过怎么解决? 我把相同的安装包装在以前的旧手机上是不存在这种情况的,所以我肯定是手机的问题,我下载了百度贴吧内部版也会出现相同情况!...

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

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linux - How to read .wpd datasets in unix?

I have datasets in wpd format with no longer access to WPS. Is there any way, we can read wpd dataset in unix? I am unable to proceed....

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

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echarts series-line.markPoint. data

series-line.markPoint. data data: [ { name: '最大值', type: 'max' }, { name: '某个坐标', coord: [10, 20] }, { name: '固定 x 像素位置', ... 按照文档设置了参数 { coord: ['2020-7-30', '1.1207'], } 依然不行...

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

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echarts中y坐标轴有负值得情况.

设置了onZero属性，但是他只是坐标轴移到了负值为起始，柱状图并没有从负值开始，直方图还是从0开始，可以问一下你们是如何解决得嘛...

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

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python - How can I append this Google API translation back into my dataframe?

I'm trying to translate (from auto detect to english) this pandas Dataframe. I can't just plug in the dataframe into translator. ... 0":"Rsst, 11211, Brooklyn","1":"Ttnft, u062......

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

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sql server - SSIS Foreach File Enumerator finds no files when executed from deployed package

I've seen this question asked several times but never with a satisfacory answer. I have read through all ... domain admin account so any suggestions would be greatly appreciated....

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

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SpringBoot RestTemplate请求返回乱码怎么解决？

@Configuration public?class?RestTemplateConfig?{ @Bean public?RestTemplate?restTemplatMessageSdk()?{ HttpComponentsClientHttpRequestFactory? ... t); return?restTemplate; } }...

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

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java - Convertion from File Object to FileItem Object

I would like to transform this entire File (java.io.File) to FileItem (org.apache.commons.fileupload.FileItem) Can any one provide the code snip for this. Help me on this....

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

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snowflake schema - Future data is not yet available for table error when running Create or replace table CLONE

Recently, in the last few days, we're having lot's of errors about "Future data is not yet available for table " when ... what is it referring to and how can we avoid it? Thanks!...

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

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typescript - error TS2578: Unused '@ts-expect-error' directive

Last week I used ts-migrate to migrate our codebase to TypeScript. The tool adds a lot of // @ts-expect-error comments in TS files to get it to ... ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...

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

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871 views

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How do I reorganize wordpress posts by author after they've been queried?

I have a page that by default lists posts by chronological order. After the page is loaded, I want the user to be able ... a way to do this without sending a new query each time?...

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

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javascript - Display Updated table without refreshing or reloading page

I have a table which shows the list of my products and I have used jQuery to delete products without ... i", $param_pro_id); $param_pro_id = $pro_id; mysqli_stmt_execute($results);...

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

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crypto用固定密码加密unionId, 知道unionId与加密后的信息能反解出密码吗？

function encode(data) { const cipher = crypto.createCipher('aes192', pass); let crypted = cipher.update(data, 'utf-8', 'hex'); ... 不是最好不是固定的pass，每个用户不同的pass存在mysql的user table中？...

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

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278 views

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javascript - React Native Firebase Get Document by Field Value (Wildcard) (doc path) Works in React but Not in React Native

I will explain the issue below, but can say I think this line works for me in React but does not in ... = firebase.firestore().collection('posts').doc('qRHqV8w6iyx4yHWg76tN');...

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

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547 views

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vue内容滚动，锚点固定高，超出隐藏，当内容滚动锚点的箭头如何停留在可视区域

类似百度这种效果 https://baike.baidu.com/item/%E4%BA%A7%E5%93%81%E6%A0%87%E8%AF%86/10882045?fr=aladdin 在线求教，谢谢...

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

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询问 docker 跟 kubernate IT 还需要会写程式吗?

请问目前在公司管理 docker 跟 kubernate 的 IT 前辈、朋友们需要兼程式开发工作吗? 还是专心当维运就可以? 我们公司的开发现在都被逼着要会 docker 跟 kubernate... 但薪水没涨喔 (我OO你个XX) 还是这已经像 JQuery 一样变成常态需求了?...

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

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powershell - How do I get the following value out of this JSON response?

Basically, I have a retrieved values from a DynamoDB using Powershell and have gotten a row in JSON format like the ... get to the dataversions value and also clean up the ?...

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

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openresty里worker进程遇到io是怎么工作的

最近刚刚接触openresty，nginx里嵌入了lua。同时openresty封装了很多异步非阻塞的api。想问一下在openresty一个worker进程中如果遇到一个网络io，此时是不是把当前协程挂起，新启一个协程去处理当前worker进程中后续的请求？...

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

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530 views

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node.js高并发程序在 Windows 系统上的性能要比 Linux 上好？

linux上跑nodo.js高并发程序，系统本身要做怎么的参数调整？...

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

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95 views

1 answer

外部排序的实现代码 -- java

求助，最近面试被问到怎么给大文件排序，现在学习了外部排序。整体思想比较清楚了，但是不知道怎么用代码实现，求助各位大佬有没有实现外部排序的Java代码呢...

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

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333 views

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go语言中的匿名函数执行顺序

预计执行结果： sdd hello world, sdd 实际执行结果： hello world, sdd sdd 不明白其中的缘由，不应该先执行匿名函数吗？...

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

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493 views

1 answer

xlsxwriter - Remove Duplicate Items in odoo Looping

Hy , I want to print odoo in XLSX, this is my code: def generate_xlsx_report(self, workbook, data, lines): ... to print output each assets and have many depreciation date? Thanks...

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

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431 views

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研究源码的时候，关于GitHub仓库上的react代码的问题

直接进入/packages/scheduler/src/schedulerHostConfig.js，代码只有一句throw new Error('This module must be shimmed by a specific build ... SchedulerHostConfig.js里导入了getCurrentTime等方法这是什么情况呢...

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

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94 views

1 answer

python - Numpy filtering using array

I know this has been asked before but there doesn't seem to be anything for my specific use-case. I have a numpy ... tried up until now working and how should I go about this?...

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

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447 views

1 answer

Gradle离线模式以及下载jar包的原理？

大佬们好，我发现gradle下载jar包后是放在它自己的缓存目录中，而不会下载到本地仓库目录中，然后当我使用gradle离线模式时，就会报错说我本地仓库目录中不存在某某jar包，我就很疑惑为什么要这么设计，还是我理解有问题 ... 而开启离线模式则只会在本地仓库中找，找不到就报错，却不管gradle缓存目录中是否存在求大佬解答 ...

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

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java - Eclipse RCP Application (using p2 repo) Build automation using Ant

We have an Eclipse RCP application which is developed using Eclipse 3.2 (old style update sites) and RCP 3. We have ... proper build folder or will i need to write new ant script?...

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

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310 views

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请问$lookup后该如何筛选子表的数据呢

aggregate([ { $match: { _id:mongoose.Types.ObjectId(id), } }, { $lookup: { from: "Comment", localField: "_id", foreignField: " ... 想让"comment_arr"里面只显示status为1的数据，请问大佬们应该如何操作啊...

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

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