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<a href="./?qa=20882/"> 怎么修改表的列名 </a>
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<div class="qa-q-view-content qa-post-content"> 请教一个问题，这样一个table，在第三列列名不确定的情况下，应该怎么改第三列的列名呢？试了用元编程来改，结果也不太对 代码如下： sql( ... date_array_p),sqlColAlias(<colNames(tmp_cur_col_table)[2]>, `value)), from =
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<a href="./?qa=20914/"> java 二维数组转换公共方法 </a>
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<div class="qa-q-view-content qa-post-content"> 把int，long，double类型的二维数组转换成string类型的二维数组 不想分别写三个方法去做这件事，怎么写一个通用方法 public String[][] stringify(Object类型？) { } 试过java 8 stream，但是stream里的数据流只能是一个元素，flatmap之后再转就没法还原成二维数组了...
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<a href="./?qa=20768/"> How to setup a VXLAN tunnel between two hosts in one Mininet topology? </a>
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<div class="qa-q-view-content qa-post-content"> I am trying to set up a VxLAN tunnel in the below topology: This is how i added VXLAN ports on both OVSs These ... . But no connectino is happening between host h1 to
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<a href="./?qa=20208/"> c# - IOptions pattern with default dynamic value not working as expected </a>
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<div class="qa-q-view-content qa-post-content"> I have a class which contains my configuration of a StartDate string, it is a yyyyMMdd hh:mm:ss representation of ... get it to return the current timestamp whenever it
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<a href="./?qa=19536/"> Kubernetes kubectl command to lookup Key in configMap or Secrets </a>
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<div class="qa-q-view-content qa-post-content"> I have about 10 ConfigMap and few secrets which stores my configuration in key and value. I am looking for any ... command which lookup all configMap or Serects to find
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<a href="./?qa=19550/"> Vue的element ui的icon 不出来（显示的都是方块）是什么原因导致的 </a>
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<div class="qa-q-view-content qa-post-content"> package.json里面 element的版本是最新的 在mian.js里面 import ElementUI from 'element-ui'; import 'element-ui/lib/theme-chalk/index.css'; Vue.use( ... 了element的字体
所有的图标都不显示，这可能是什么原因导致的呢？... </div>
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<a href="./?qa=19414/"> async/await拿不到想要的返回值 </a>
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<div class="qa-q-view-content qa-post-content"> 问题描述 问题出现的环境背景及自己尝试过哪些方法 需要是这样的，我从前端发送了用户和密码到后端addUser接口注册用户密码 注册成功之后返回一个token，也就是注册及登录 后端数据库采用的mongdb 框架为koa 现在遇到了一 ... 户成功admin6 123456 '' 已被困扰了一下午，重新看了看回调的书，但还是没有问题的头绪
诚恳希望各位指点！... </div>
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<a href="./?qa=18982/"> 请问这个链接里面的视频如何爬取 </a>
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<div class="qa-q-view-content qa-post-content"> 在对象数组中删除出现次数为偶数次的项,保留奇数次的项 var a = [ { id: 1, content: '11' }, { id: 2, content: '22' }, { id: 1, content: '11' }, { id: ... content: '44' }] // 在数组中保留出现次数为奇数次的项 删除偶数次的项
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<div class="qa-q-view-content qa-post-content"> 两个对象数组对比,如果有相同的项就删除,不同就添加 var a =[{id: 1,content:'11'},{id: 2, content:'22'},{id: 3, content: '33'}] var b = [] // 这个时候 a ... 中的相同项删除 不同项添加进去 得到 b = [{id: 3, content:
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<div class="qa-q-view-content qa-post-content"> 怎么获取所有的value值，并取出最大值呢 数据引用递归结构的json取指定的值？ [ { "label": "上海", "value": 310000, "children": [ { "label": "上海", "value": ... 131 }, { "label": "测试2", "value": 132 } ] } ] }
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<div class="qa-q-view-content qa-post-content"> Can anyone tell me how WaitOnAddress / WakeByAddressSingle / WakeByAddressAll works internally ? From a MS blog-article I noted that it works with least
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RECENT QUESTIONS
0 votes
158 views
1 answer
怎么修改表的列名
请教一个问题，这样一个table，在第三列列名不确定的情况下，应该怎么改第三列的列名呢？试了用元编程来改，结果也不太对 代码如下： sql( ...
date_array_p),sqlColAlias(<colNames(tmp_cur_col_table)[2]>, `value)), from =
tmp_cur_col_table).eval()...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
184 views
1 answer
java 二维数组转换公共方法
把int，long，double类型的二维数组转换成string类型的二维数组 不想分别写三个方法去做这件事，怎么写一个通用方法 public
String[][] stringify(Object类型？) { } 试过java 8
stream，但是stream里的数据流只能是一个元素，flatmap之后再转就没法还原成二维数组了...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* java
0 votes
229 views
1 answer
How to setup a VXLAN tunnel between two hosts in one Mininet topology?
I am trying to set up a VxLAN tunnel in the below topology: This is how i
added VXLAN ports on both OVSs These ... . But no connectino is happening
between host h1 to host d1....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* How
0 votes
165 views
1 answer
c# - IOptions pattern with default dynamic value not working as expected
I have a class which contains my configuration of a StartDate string, it is
a yyyyMMdd hh:mm:ss representation of ... get it to return the current timestamp
whenever it is called?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* c#
0 votes
169 views
1 answer
Kubernetes kubectl command to lookup Key in configMap or Secrets
I have about 10 ConfigMap and few secrets which stores my configuration in
key and value. I am looking for any ... command which lookup all configMap or
Serects to find my key?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* Kubernetes
0 votes
205 views
1 answer
Vue的element ui的icon 不出来（显示的都是方块）是什么原因导致的
package.json里面 element的版本是最新的 在mian.js里面 import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css'; Vue.use( ... 了element的字体
所有的图标都不显示，这可能是什么原因导致的呢？...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* Vue的element
0 votes
213 views
1 answer
async/await拿不到想要的返回值
问题描述 问题出现的环境背景及自己尝试过哪些方法 需要是这样的，我从前端发送了用户和密码到后端addUser接口注册用户密码
注册成功之后返回一个token，也就是注册及登录 后端数据库采用的mongdb 框架为koa 现在遇到了一 ... 户成功admin6 123456 ''
已被困扰了一下午，重新看了看回调的书，但还是没有问题的头绪 诚恳希望各位指点！...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
212 views
1 answer
请问这个链接里面的视频如何爬取
视频网页 抓包 只发现了swf这种 请问如何抓取...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
166 views
1 answer
Github Action failing with R CMD check, using old commit?
I'm not sure how best to describe this, hence the rather vague title. I have
an R package that uses ... 've already tried rerunning the workflow, and
deleting older workflows....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* Github
0 votes
233 views
1 answer
oracle - Transferring files from my Local windows pc to my Linux VM
SO i am new to tech, and as previous posts suggests i am working with OCI.
Currently i run a linux 8 VM on OCI ... not sure where to start. Anybody with
good advice please aid me!...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* oracle
0 votes
292 views
1 answer
js对象数组中删除出现次数为偶数次的项,保留奇数次的项
在对象数组中删除出现次数为偶数次的项,保留奇数次的项 var a = [ { id: 1, content: '11' }, { id: 2,
content: '22' }, { id: 1, content: '11' }, { id: ... content: '44' }] //
在数组中保留出现次数为奇数次的项 删除偶数次的项 有无大佬帮忙看看...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
243 views
1 answer
Get variable value from PHP in AJAX
I'm trying to catch a PHP variable in AJAX, but I'm not having much luck.
myCode.php <?php //myFunction ... and then get $status when I execute
initiate_delete? Thanks in advance....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
* Get
0 votes
328 views
1 answer
两个对象数组对比,如果有相同的项就删除,不同就添加
两个对象数组对比,如果有相同的项就删除,不同就添加 var a =[{id: 1,content:'11'},{id: 2,
content:'22'},{id: 3, content: '33'}] var b = [] // 这个时候 a ... 中的相同项删除 不同项添加进去
得到 b = [{id: 3, content: '33'}] 请大佬帮帮忙...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
281 views
1 answer
递归结构json取出所有id最大值
怎么获取所有的value值，并取出最大值呢 数据引用递归结构的json取指定的值？ [ { "label": "上海", "value":
310000, "children": [ { "label": "上海", "value": ... 131 }, { "label": "测试2",
"value": 132 } ] } ] } ] } ]...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
351 views
1 answer
请问下这种区域热力图是用什么插件绘制的
...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
455 views
1 answer
winapi - How does WaitOnAddress / WakeByAddressAll / WakeByAddresSingle work
Can anyone tell me how WaitOnAddress / WakeByAddressSingle /
WakeByAddressAll works internally ? From a MS blog-article I noted that it works
with least kernel-intervention....
asked Jan 25, 2021 in Technique[技术] by 深蓝 (31.9m points)
* winapi
0 votes
352 views
1 answer
Lodash isLength源码
MAX_SAFE_INTEGER 是怎么算的...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (31.9m points)
* Lodash
0 votes
426 views
1 answer
在CAD中怎样将三维模型转换成2D? thingjs 三维可视化
CAD是用来绘制2D建筑图纸的工具，3D建模需要一定的比例换算，所以这是常见的功能 以模模搭客户端（CampusBuilder）为例
2D/3D【右上角】点击切换键，按需转换视图，确定三维建筑的比例 CAD转3D dwg文件，自动转成三维模型 ... 分钟利用UV贴图
拖拽模型等方法快速搭建3D场景，建议一同学习 软件下载地址 真实照片 下午时段效果图...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (31.9m points)
* 在CAD中怎样将三维模型转换成2D?
0 votes
345 views
1 answer
h5中sessionStorage.sessionId获取到的是服务器端session的id吗？
sessionStorage存储的数据，每次请求服务器的时候，并不会发送，为什么
sessionStorage.sessionId获取服务器id有什么用呀？...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
289 views
1 answer
控制台上显示的数据怎么传输到PHP端？
我想把这个在控制台显示的数据传到PHP端，该怎么写呢？ console.log('关键词：',self.kw);
console.log('搜索引擎：',self.fm); //把参数转换为JSON格式 var ... 关键词
console.log('关键词：',self.kw); console.log('搜索引擎：',self.fm);...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
281 views
1 answer
java - Object does not exist at location. Code: -13010 HttpResult: 404
When I am trying to upload an image to firebase I get a failed message then
I get the error message in my LogCat that ... .this, MainActivity.class));
finish(); } } }```...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
* java
0 votes
345 views
1 answer
How to initialize an array object with extra properties in TypeScript?
I need to create an object of the following type: type ArrayWithA = [number,
number, number] & { a: string }; I do this as ... : type FuncWithA =
((string)=>void) & { a: string }?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
* How
0 votes
397 views
1 answer
python - How to unit-test a pytest plugin's hook acting on session-specific
data?
I have a pytest plugin written to support a hardware-testing process. The
plugin has two key features: a session-scoped db ... can I verify the call into
the fixture from the hook?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
* python
0 votes
379 views
1 answer
Chrome开发者工具怎么提取动态加载的所有代码？
有篇文章特别长，需要一直向下滚动才会不断地加载内容，我想复制整篇文章，好不容易从开始到结尾，但是从开发者工具里的代码里弄出来的只是一部分，再向上滚动，再复制，结果也是一部分，这有法子把所有已加载了的内容代码复制下来吗？...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
486 views
1 answer
wordpress - How do I get upsell for variable product in Woocommerce?
Short version: How do I get upsell for variable product in Woocommerce?
Longer version: I need the product ... the parent method
WC_Product::$product->get_upsells_ids() ?? Thanks...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
* wordpress
0 votes
430 views
1 answer
mac版VMware远程桌面连接直接显示桌面已断开连接
使用VMware Horizon Client 远程连接时，直接提示： 请问有没有同学知道解决办法的？
本机未开代理、防火墙已关闭、不是帐密错误问题。...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
0 votes
404 views
1 answer
Using memcached in laravel. Is it normal application behavior?
Few words about my environment: laravel 8; osx bug sur, mamp, php7.4.2 (with
igbinary.so, memcached.so) memcached (have ... when memcached is down
dump($cache->get('asd')); });...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
* Using
0 votes
390 views
1 answer
按需引入 antd 一用组件就报错 Possibly missing '(' in mixin call
给 node_modules 下的 antd 文件夹下的 .less文件的
mixin用法都加上括号就不报错了，但是我要每引入一个就加括号，这不太合理呀，我之前弄得也没有这个情况 项 ... .scss'; ` }, less: {
lessOptions: { javascriptEnabled: true, modifyVars } } } }...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (31.9m points)
* 按需引入
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