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527 views

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amazon web services - AWS IAM Setup for EC2 Resource in AWS Data Pipeline

I am having an issue getting AWS Data Pipeline to run on an EC2 Instance via a Shell Command Activity. I have ... still keep getting that specific warning. Do you have any ideas?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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291 views

1 answer

如何将option里面的value值,通过ajax提交到后台

mui.ajax({ type:'get', dataType:'json', url:classifyUrl, success:function(data){ var len = data.length; for(var i=0; i<len; i++){ var ... );输出的却是第一个option里面的东西,怎么才能正常提交呢,球大神指教...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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388 views

1 answer

Laravel 5.4 User模型无法使用can()方法，说方法不存在

在PostController创建帖子： public function store(PostRequest $request, Topic $topic) { // Get user id. $user = ... } 报错： Call to undefined method IlluminateDatabaseQueryBuilder::can()...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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192 views

1 answer

sql - Left join command is not showing all results

I have a table RESTAURANT: Id | Name ------------------ 0 | 'McDonalds' 1 | 'Burger King' 2 | 'Starbucks' 3 ... r left join ORDER o on r.Id like o.ResId group by o.ResId;...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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453 views

1 answer

使用pm2怎么进行日志分割？

nodejs项目中使用了pm2; 使用了pm2自带的日志功能，现在所有的日志都生成在一个文件中，如：error-1.log。可不可让日志根据日期来生成呢？如error-20170314-1.log。看到有pm2-logrotate可用，但安装配置没反应，求指导！谢谢！...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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439 views

1 answer

reactjs - dispatch is not accessible from useContext

i have simple store import React, { createContext, useReducer } from "react"; import Reducer from ... to access dispatch from useContext from components wrapped withAuthenticator...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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231 views

1 answer

javascript - How to access data from form in shopify

I am working on form in shopify where I want to access form data from shopify and send that data into my custom API route . ... -radius: 0px 4px 4px 0px;"/>Submit</button> </form>...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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519 views

1 answer

请教一个关于chrome cookie获取的问题？

为了安全，服务器会把cookie的某些值设置为httpOnly，这样客户端就不能通过javascript的document.cookie拿到这些cookie值但是在chrome的devTools - Application - cookie 里，还是能看到 ... 是没限制我在客户端获取cookie值，httpOnly设置的意义何在呢？小白不懂，求指教 ...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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164 views

1 answer

Cannot figure out how to format strings in an array (C) – very new to comp sci

I've looked through many questions here, but the syntax is unfamiliar to me. I am trying to write a program in C ... I will need another function library to use strings in arrays?...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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338 views

1 answer

google chrome - How to run Flex application after disable flash player in all browsers after 2020

I'm still supporting a couple of flex applications because migration is in progress, is there any option to enable ... how to continue the Flashplayer support for the next months....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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572 views

1 answer

[我想单独找到每条数据里面的station_name 但是这样写吧全部都遍历出来了小白求教

{ "resultcode": "200", "reason": "Successed!", "result": { "train_info": { "name": "G656", "start": "西安北", "end": "北京西", " ... , "gjrw": "-", "stay": "-" } ] }, "error_code": 0 }...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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358 views

1 answer

谁能给我解释下这条Git 命令呢？

git checkout -b remotes/origin/develop...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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209 views

1 answer

问个问题 Uncaught (in promise)

是这个样子的 vue+vue-resource+express组合然后在下面这里遇到问题了 client this.$http.jsonp('http://localhost:3300/register', { params: { name: ... ', function (req, res) { res.jsonp(data) ｝这是问什么啊？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

1 answer

thinkphp验证码的验证

// 检测输入的验证码是否正确，$code为用户输入的验证码字符串 function check_verify($code, $id = ''){ $verify = new ThinkVerify(); return $verify->check($code, $id); } 那这个$id=''是什么东西？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

359 views

1 answer

c++ - Is there a version of itoa that returns how many characters were written to the buffer?

I am currently calling _itoa_s and then calling strlen to figure out how many characters were written. Is there ... of doing the string conversion using the standard library....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

1 answer

使用canvas的fillText方法写文字时，坐标的问题。

我想在canvas画布左上角添加文字你好世界，我用的是fillText方法但是，运行后只显示很少一部分文字如图，绿色横线上面：代码： <!DOCTYPE html> <html> <head> <meta charset=" ... ); </script> </body> </html> 请问如何才能在canvas画布左上角显示你好世界？...

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

232 views

1 answer

MIPS ASSEMBLY How to use if's and else's translation from C to MIPS Assembly

So i have this code in C that i have to translate into assembly int a[10]={0,1,2,3,4,5,6,7,8,9}; int i ... if's and else's since i haven't found any really good explanation online....

asked Feb 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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108 views

1 answer

angular2中的疑问？

export class DashboardComponent implements OnInit { heroes: Hero[] = []; constructor(private heroService: HeroService) { } ngOnInit(): void { ... 改成 heroes: Hero[]；为什么无法运行？区别在哪？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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462 views

1 answer

请问下，这里为何会引发空指针异常？

有人跟我讲，将name进行静态赋值即可，但实例变量不也是属于成员变量吗，也是在整个类实例化的时候产生的啊，跟静态赋值有何区别吗？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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447 views

1 answer

如何使swiper.js在页面返回时保持原来状态

页面中含有swiper.js,当点击第3个块的标签，跳转到下一个页面，下一个页面返回时，原来的页面中已经不是第3块了，而是第1块，我希望时他还能是第3块，同时上面的tab也是对应的第三块还是 ... $(this).index()); }); $(".tabs a").click(function(e){ e.preventDefault() }); }...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

274 views

1 answer

请教webpack配置中resolve()是什么方法？

在webpack.base.conf.js文件中的配置 alias: { '@': resolve('src'), } 请教resolve()是什么方法？生成的是什么路径？（注意并不是path.resolve()）...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

174 views

1 answer

node.js - getParametersByPath page size

In AWS-SDK for Node.js getParametersByPath() SSM method returns paged data, meaning I have to make several calls in a loop. ... to either be one call or 2 calls made in parallel....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

568 views

1 answer

Vue2.0基于webpack创建项目后报错

求大神帮忙看看!!!! Vue2.0基于webpack创建项目后只修改了app.vue,一小段时间不用就突然这样了,已经是第二次这样了,第一次重新建了一个项目....

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

438 views

1 answer

Laravel Nova Metrics - Use Aggregate Function

If I am trying to display the total number of distinct customers, it would as simple as follows: return $this->count( $request, ... having `count` > 1)" How can I fix such issue?...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

283 views

1 answer

angular - Combine obs with various filter options

I have the following scenario Load data if ain't loaded yet this.mailFacade.mailLoaded$ .pipe( filter(res => !res), ... ain't loaded yet get() puts the state loaded to true...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

464 views

1 answer

regex - Add a new line after a matched pattern in Notepad++

I have a csv-file, now i need to bring it in another form. I want to have a line break after a specific pattern. ... have a line break. I am using notepad++. Thanks for your help...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

321 views

1 answer

java中可以通过类的class属性得到该类的字节码文件对象？

如 Class c1 = Student.class; 可是无论是Student类还是它继承的Object类都没有class属性呀？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

491 views

1 answer

一个<ul><li></li></ul>列表用remove删除不干净，哪里出了问题？

<ul id="box"> <li>脚本之家一</li> <li>脚本之家二</li> <li>脚本之家三</li> <li>脚本之家四</li> </ul> 一. window.onload=function(){ var obox=document. ... 子，根据第1个例子又去尝试第2个例子，所以函数应该怎么写才对？并且我的问题出在哪里呢？...

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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