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我在引入VUEX的时候遇到了问题，求助各位大大我把VUEX的代码直接写在main.js下没有问题，可以正常使用：这是main.js页面这里在实例化中注入以上这个写法没问题，但是我希望能把store这个文件独立 ... 是store/index.js文件然后再main.js下这样注入store：实例化注入部分还是原来那样写是我哪写错了么？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Reading Multiple JSON objects in java

{"phone":1234,"name":"rose","key":1,"country":"india"} {"phone":6789,"name":"jasmine","key":2," ... .parse(JSONParser.java:92) Could anyone please help me resolve this error?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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echarts做堆叠柱图，出现了问题，求各路神仙指点一下下。

1.柱图堆叠，每个data都有图像标注，但是关于定位和显示，我很搞不懂。刚用echarts 2.红圈中的每个series.data；都要显示一个detail的图框，只能用markpoint？实现这个需求吗？如何定位？.....help........

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - When to use single quotes, double quotes, and backticks in MySQL

I am trying to learn the best way to write queries. I also understand the importance of being consistent. Until now ... seems like there is no definitive answer to this question....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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weex下，用vue做类似于QQ好友列表的ui效果遇到个问题

如题，我是使用了两个list嵌套，然后在第二个list里设置v-show，结果一点击第一个list的t itle，每个title下的列表内容都隐藏了，我只是想隐藏相应的title下的内容...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to write a Cout<< Like print function for 16x2 LCD?

Development Environment Controller: Atmega8 Language: C++ (-std=gnu++14 flag added ) IDE: atmel studio 7 Note: Most of the std:: ... Val:",x,'=',5,"+",3.4); } expected output...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Dark Mode not working React Navigation React Native

I Am working on this to implement Dark Mode in React Native using React Navigation. but it changes only the bottom bar ... this Snack Code https://snack.expo.io/@belgin/news-app...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video.js 引入后，背景不能缩放了，有黑底？

h5中video标签引入video.js后，视频大小固定了，不能随页面大小变化，请问如何解决？将.video-js类大小设置为100%，会出现黑背景，视频大小还是不会改变，求指教这是地址：http://ongd1spyv.bkt.clouddn.... 这样明显不好啊...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Access to ARKit – iOS App Rejected Guideline 2.5.1

Our iOS app rejected with following reason. Guideline 2.5.1 - Performance - Software Requirements During review, we were ... text. Any kind of help will be appreciated. Thanks...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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knn - when I run the code below,I am getting an error as "index 0 is out of bounds for axis 0 with size 0"

This is my code below def recomend_book(book_name): b_id = np.where(books_rating_pivot.index == book_name) ... (books_rating_pivot.index[recommendations[i]]) recomend_book('Harry')...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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chrome断点调试进去不

在js文件打上断点一直在jsp页面来回跳，，怎么办谢谢各位大哥...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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webpack sass-loader编译后，style输出并没有编译成功

webpack 使用sass-loader进行编译，但是在输出后的style中没有编译成功，如下图编译不成功，还是scss时的样子，没有编译成css,导致页面识别不出。有安装node-sass...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Rails query - How to joins two tables on specific columns

I have a model(OwnershipTransfer) with two columns that are belongs_to to another model(Account): class OwnershipTransfer < ... any clue to explicitly select a column to JOIN ON?...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python网站登录并签到问题

问题：python在登录成功后，签到时提示没有登录，也就是缺少cookie 我通过Fidder抓包发现和手动登录成功相比，Python发出去的包缺少cookie下面是代码,但是我查到用opener ... = opener.open(register_url) data = op.read() data = ungzip(data) print(data)...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Keycloak - Is it possible to map composite roles and their attributes to the access token?

What I am trying to accomplish is a way to map the composite roles(and their attributes), as well as their "child ... need to integrate with Azure AD Edit: Client protocol is OIDC...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - Crash on DidSet from external XIB

I have an external XIB that is @IBDesignable. Inside the view that shows this XIB, I have this outlet. @IBOutlet weak var ... ) } Any ideas what is going on? Thanks in advance....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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并发下出现spring的requestbody丢失数据的问题

一次请求的数据量比较大，因为包含图片信息，我们在filter里拦截做requestbody的日志记录，因为流只能读取一次因此重新作了参数的封装 control层用spring的@requestbody来获取参数，在做压力测试的时候发现在200个并发的情况下 ... 道是什么原因引起的，jvm配置问题还是代码层面的问题？另一个数据量小的请求接口就没有这个错误 ...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to create ONE-FILE setup package in Visual studio (C#) to be run WITHOUT elevated privileges

Iam strugling with creating ONE-FILE setup for my Windows WPF project, that will run WITHOUT elevated privileges. ... can be installed WITHOUT elevated privileges. Thanks for help....

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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编译php ./configure命令enable和with有什么区别

./configure --enable-curl ./configure --with-curl 1.enable和with参数命令有什么区别？ 2.如何将扩展编译进php，而不是以.so动态扩展形式存在？更新 3.哪些扩展是php官方支持的呢？是 ... 下的就是php官方支持的么？可以编译进php的？ 4.使用什么命令将官方支持的扩展编译进php？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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es6 或 react 语法问题

export class Form extends Component { constructor(props) { super(props); } // 正则合集 rule() { required: function(val) { return /^ ... /^S+$/gi.test(val); }, this.rule().alpha()...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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MongoDB 搜索用时和符合条件的数目问题

就类似于这样，百度共为您找到相关结果XXXXXX条。用时XXXX毫秒。这个是如何实现的。先把所有的条数计算出来，再分页？先，count = db.table.find().count(); 然后，db.table.find().skip().limit(); 是这样么？还有XXX毫秒是计算的总数的还是分页的。。。求解。...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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470 views

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为什么onclick不能直接调用含参函数而需要写成onclick=function(){fn(p）}的形式？

js新手，求教大神，为什么onclick不能直接调用含参函数而需要写成onclick=function(){fn(p）}的形式？而非含参函数可以直接写为onclick=fn();? 深层次原理是什么？谢谢...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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361 views

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mongodb - YAML provided on official Mongo Docker Image page doesn't work on CentOS

the given yml (which is originally provided here): # Use root/example as user/password credentials version: '3.1' services: ... ", "id":20282, "ctx":"SignalHandler","msg":"Deregis...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jquery - Save variables globally from radio input

Having the following htmt and function. I can't get var skinColor to save "light" or "dark" after i click my button. How do ... ("You must select a skin to continue."); break; } }...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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389 views

1 answer

spring如何实现领域驱动模型DDD呢

领域驱动模型, 让实体类有了一部分的业务方法, 那么在实体类中 @Autowired 一个 Dao 或者 MyBatis Mapper就不成功啊, 因为这个实体类不是 Component, 实体类都是 new 着用的 ... .xxxxx(); } } 在其他地方如service中, 不能 new Role()啊, RoleMapper 注入不进来...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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React事件中的 this为什么是null？

为什么this为null？ class App extends Component { handleClick(e) { console.log(this)//为什么是 null？ } render() { return ( <h2 onClick={this. ... > 所以什么时候会打印undefined，什么时候会打印null，什么时候正常打印？...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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478 views

1 answer

javascript - Functions not valid as a React child. This may happen if you return a Component instead of <Component /> from render

This is the error I get while trying to create my first project in React.js, which is simply a sticky notes app. The whole warning ... js:1 Cq @ babel.min.js:1 kq @ babel.min.js:1...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - ImportError: cannot import name 'AdultDataset' from 'dataset'

Please I am working on AdultDataset for a classification task I found out: from dataset import AdultDataset is giving ... y_test) 5 NameError: name 'AdultDataset' is not defined...

asked Feb 5, 2021 in Technique[技术] by 深蓝 (71.8m points)

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