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714 views

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现在用的是Transform(transform: Matrix4.translationValues)，但是不会自动响应动画值，需要手动监听动画值变化或者套AnimatedBuilder，只好自己封装了一下看文档官方是有一套可以自动响应动画值的Transition系列组 ... 小的倍数偏移感觉这种基础的东西官方应该会有组件，是我没找到吗，还是说没有？...

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

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1.1k views

1 answer

求解，npm run unit 报错

npm run unit 报错，单元测试跑完了，覆盖报告也生成了，但是npm马上报错，找不到原因，另一个老项目配置一样，跑npm run unit 不报错...

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

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845 views

1 answer

Node 中流文件读取的事件监听重复使用问题

let fs = require("fs"); let rs = fs.createReadStream('d:/01.wav',{flags:'r'}) let ws = fs.createWriteStream('d:/01-copy.mp4',{flags:"w"}) ... 解的这个流操作的机制，为社么打开关闭只有一次呢却能读取流对象内容两次呢？...

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

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1.2k views

1 answer

cesium加载了geojson如何实现点击矢量图层并且让图层高亮

var handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas) handler.setInputAction(function(click) { debugger var pick = viewer.scene ... .LEFT_CLICK ); 请问需要怎么做才能获取到图层...

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

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1.2k views

1 answer

supervisor 通过虚拟环境中的gunicorn运行程序提示找不到模块

非 root 用户，网站目录是 /home/www/web/ supervisor 配置文件： [program: weba] dirctory = /home/www/web/ command = /home/www/web/.env/ ... /.env/bin/gunicorn -w 4 'app:create_app()' 是OK的这是什么情况...

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

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1.4k views

1 answer

c++ - Insert a json object into another in a nested level by using JsonCpp

Using JsonCpp, I want to create a function insert_json declared as void insert_json(Json::Value& base, const Json:: ... ? Is there any easy alternative with another json library?...

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

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1.9k views

1 answer

android - compiling program code written in C/C++/Python and make binary or executable for ARM or any other OS/archetecture

So I have to decide where a program that I like to write will run. it means three things Run on same OS ... computer . I like opensource options. Name and few words of explanation...

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

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2.2k views

1 answer

关于一个带sliderBarde flex布局

现在是这样的 flex布局分三列两端固定，中间自适应，父元素flex father { display: flex; } left { width: 458px; } right { height: 458px; } center { flex: 1; } ... 展开的时候，center不压缩而是整个父元素整体向右边推，产生一个滚动条蛋疼如何解决...

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

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2.6k views

1 answer

typescript - Group multiline string by regex pattern javascript

I have a multiline string that I want to split and group by a certain regex pattern that appears several times ... Append every line up until the next occurrence as the value...

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

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2.6k views

1 answer

python - Script Is Inserting Duplicate Rows To my Table

I'm having issues trying to stop my script to not insert a new row if the icl_dollar_amount is already in my table. Every ... icl_awk VALUES ('%s', %s)""" % (client_id, file_total)...

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

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14.8k views

1 answer

rust - Is there a way I can turn video frames from GStreamer to SkImage instances to be used in Skia?

I'm currently writing my own game engine with GStreamer for media and Skia (Vulkan) for graphics. Is there a way I ... GStreamer through fakesink. Not sure if that's of any help....

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

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2.7k views

1 answer

common table expression - Cleaner SQL CTE than the current one

Currently I use the following CTE to grab a category and any category below it: WITH RECURSIVE tree AS ( SELECT * FROM ... that I read his other version. How to simplify this CTE?...

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

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2.6k views

1 answer

tomcat的context.xml文件如何获取系统环境变量

为了不手动修改tomcat配置文件，我在context.xml文件中，配置了形如${user_name}这样的参数，系统环境变量中配置了user_name=张三，但是并不能读取到这个值，有什么方法可以获取到系统环境变量？...

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

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2.7k views

1 answer

请教 Java 的 Quasar 库的 Fiber 性能问题及使用姿势

今天试了下 java 的 fiber 库 quasar，有些疑问测试方法是扫描本地端口 8000~9000 查看端口是否 socket 监听，本地启动了一个 8080 的服务比较不同方式扫描一遍1000个端口耗时 quasar 的耗时 ... 改造的有过 quasar fiber 的使用经验么可以解释下我这个结论是正确的还是我操作方法有啥问题...

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

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3.2k views

1 answer

r - Increasing margins for base plot in RShiny (arguments to par() are not respected)

I am having issues with a Shiny App such that the text labels are being cut off. If I were performing this plotting in R, ... use par() to define a plotting area for a shiny app?...

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

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3.4k views

1 answer

git push或git clone时出错：The requested URL returned error: 500？

详细出错图在上面展示出来？希望各位大佬可以帮我解决。...

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

0 votes

3.1k views

1 answer

javascript - How to filter my search results by location and how to rerender?

I am currently rendering user's search results in my component and those results are being stored in a state ... re-rendering search results based on clicking location filter?...

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

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3.8k views

1 answer

负数时间戳日期转换问题

使用 mysql 提取数据时,遇到一个问题:负时间戳无法通过FROM_UNIXTIME 方法转化成正常的日期: FROM_UNIXTIME(-2641363543) Null 这个时间戳对应的正确的日期其实是: 1886-04-20 00:00:00,我搜索了一下, ... 他们都可以转换成正确值,我就不知道是怎么实现的,另外上面这种转化逻辑的问题是在哪呢?...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.7k views

1 answer

Huge increase in AdMob's "Invalid Traffic" - Action required?

For some time, my AdMob earning reports have occassionally had an entry in Transactions that said: "Invalid Traffic - ... Should I worry or not? Thank you for any information....

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.5k views

1 answer

在vue组件中，自定义变量是否会导致内存泄漏？

父组件 <template> <child v-if="show"/> <button @click="show = !show">test</button> </template> <script> export default { data() { return { ... 如果在vue组件中使用了类似这种_data的自定义变量如何防止内存泄漏，谢谢！...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

4.4k views

1 answer

spring boot - Error while invalid mime type "application/vnd.google-earth.kmz .kmz

I am trying to consume a rest endpoint which is returning a KMZ file, but I am getting error invalid mime type " ... google-earth.kmz .kmz"); factory.setMimeMappings(mappings); } }...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.7k views

1 answer

typescript 中赋值时多种数据类型的问题

一个传入参数 handle 被声明为类型 a|null，然后将该参数赋值给类型为 a 的变量会报错，要如何解决？看下图我应该将传入参数的类型指定为 a 而不要 a|null ？？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.7k views

1 answer

python - How to deal with large csv file quickly?

I have a large csv file with more than 1 million rows. Each row has two features, callsite (the location of an ... to store and restore that kind of data with variable length?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.4k views

1 answer

有源码不理解，

各位大佬，开门见山，就下面这串源码看不太懂，求指点 var R = typeof Reflect === 'object' ? Reflect : null var ReflectApply = R && typeof R.apply === ... .apply.call 这个没看懂什么意思？单独的apply和call能理解，这2个连在一起 ...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

3.9k views

1 answer

GOOGLE SHEETS COPY MULTIPLE CELLS TO ANOTHER SHEET

I am new in Google sheets . I want to copy source sheet's cells A , D, F for active row to destination sheet's ... I couldn't paste to destination sheet. Thank you for your help....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.0k views

1 answer

mongodb - How to compare Hostnames and boolean values in JavaScript with if/else to execute in Mongo Shell?

I need to compare Host names from two expressions in Java script using if/else(to be executed in Mongo Shell) and ... one correct the syntax and help me get the code executed....

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.2k views

1 answer

idea升级2020.3以后，编译插件以后提示“类文件具有错误的版本”

如题，错误信息文本为：错误: 无法访问NotificationDisplayType import com.intellij.notification.NotificationDisplayType; ^ 错误的类文件: /Users/formalin14/.gradle/caches/ ... 个类文件怎么还有版本呢？会不会跟idea下载预编译索引有关？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.9k views

1 answer

vue3使用elemet.plus的表单为何无法吸选取和输入

<el-form :model="formData" status-icon ref="formData" :rules="rules" label-width="80px" class="form" > <el-form-item ... return { formData, rules, channelList }; }, }); </script>...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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