Recent questions in Technique[技术]

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本人有企业资质，要开通收款二维码动态生成来向软件用户收费最近了解的是支付宝每月要付固定费用，好像是1万每月这个对于创业初期的人来说承受不起啊而开通微信收款是要先开通公众号，我选择服务号是要收企业认证费300元，但微信文档暂时 ... 总而言之如果开通收款码后每月要固定付费而且都是几千上万，压力山大！是否可以考虑银行卡快捷支付的方式？这个成本如何？...

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

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python - Date ticks and rotation in matplotlib

I am having an issue trying to get my date ticks rotated in matplotlib. A small sample program is below. If I try ... does not rotate the xticks #plt.xticks(rotation=70) plt.show()...

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

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python - ValueError: The 'image' attribute has no file associated with it. when testing a model with a NULLABLE image field

I'm testing a model called Category that looks like this: class Category(models.Model): image = models.ImageField(upload_to= ... ='test_category', image=Null) But it didn't work....

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

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google cloud composer - How to list the running dags in airflow worker pod

We have 3 composer GKE nodes and 3 worker pods evenly distributed in all 3 nodes. I need to know how to check ... . Sometimes my pods are not evenly distributed in all 3 nodes....

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

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ElementUI Table组件的show-overflow-tooltip超出隐藏是如何实现的？

Table组件的show-overflow-tooltip属性，在文本未超出时鼠标悬浮不会显示Tooltip文字提示，文字超出时才显示Tooltip提示 elementui是如何实现这个功能的？是可以通过js ... overflow-tooltip应该不是通过这种方式实现的！问elementui如何实现show-overflow-tooltip功能？...

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

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directx 12 - DirectX12 rendering to part of the window

I am trying to have the DirectX12 pipeline render to only part of the window, not the full window. Is ... the window? I must be missing something about CreateRenderTargetView()...

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

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ios - Cannot dismiss multiple Detail-Views after CoreData save in SwiftUI

I have an app with multiple Detail Views that use as source instances of NSManagedObject. Imagine View 1 fetches all persistent instances of ... (i)" } try! moc.save() }) } } }...

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

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windows subsystem for linux - Unexpected EOF from Docker Registry

I'm receiving an unexpected EOF (I think) when I try to get to the Docker registry during a docker pull. I am ... not specifying any kind of file or page. Any help is appreciated....

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

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2.5k views

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R: Getting around periodic random numbers

I'm building a distribution of proportions of random values lower than a specified threshold. ret = c(); thr = 0.5 ... of the random number generator. Is there any way around this?...

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

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基础设施中，什么是BM？

什么是BM？支持部署在公有云、私有云、VM、BM和k8s等任何基础设施之上。这里的BM指的是什么？...

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

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docsify怎么生成RSS订阅？

docsify是在运行时从MarkDown渲染为HTML的，这种静态站点怎么生成RSS订阅？...

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

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boost read_json 失败

代码解析的时候失败，反序列化就不行发送的时候，序列化可以报文： {"msgType":"MODEL_SYNC","DATA":"<VoltageLevel> INSERT ... .汤庄/35kV',38.500000,31.500000,113997366138241211,112871465677750275) </VoltageLevel> "}...

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

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office js - Is it possible to select/update shape/icons/image properties using MS powerpoint add-in?

Using this sample code in MS powerpoint office add-in from Script-Lab, setSelectedDataAsync is able to insert an ... shape/icons/image properties using MS powerpoint add-in....

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

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3.0k views

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关于el-dropdown-menu的样式问题？

这种情况网站刚打开的情况下出现，再刷新就没有了，不知道是不是我写法有问题...

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

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3.2k views

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grpc 如何将model数据转换为proto生成的结构体返回?

刚开始学习grpc 遇到问题请教下 model: type User struct { Id int64 `json:"id"` Nickname string `json:"nickname"` } func Users()[]*User { var rows [ ... .User 返回但是pb生成的是[]*pb.User // 请问要如何解决呢? }...

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

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c - Problem when trying to remove a node in a tree

I have a binary tree. I'm trying to delete one of the node and all of his "children". But, my function deletes just the ... , root->ID); root = NULL; free(root); return NULL; }...

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

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3.5k views

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vue项目本地测试的时候请求都没有问题，但是发布测试版的时候get请求的请求方式不见了，无法发送请求。

### 问题描述 vue项目本地测试的时候请求都没有问题，但是发布测试版的时候get请求的请求方式不见了，无法发送请求 ### 问题出现的环境背景及自己尝试过哪些方法问题背景，初次进入首页请求菜单列表的时候，请求里没有携带请求方式 ... 期待的结果是什么？实际看到的错误信息又是什么？期待的结果：请求成功！实际看到的错误信息：请求没有发送成功！...

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

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3.9k views

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webpck4 怎么指定uglifyjs-webpack-plugin插件怎么设置js文件不参与压缩和混淆

是在uglifyOptions配置吗，怎么配置，有没有参考...

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

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typescript泛型类怎么根据泛型参数来禁止某些方法的调用？

class Foo<T> { //上面已经写了几百个函数和变量了 //突然想到，如果T是number类型的话，可以有一个foo函数就好了 //但是如果T不是number类型的话，希望调用foo能被禁止 foo(){ } } 我希 ... 那种一般的方法定义的语法因为这种方法定义函数的时候，语法奇葩，需要as any，还没有定义在prototype上面 ...

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

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3.8k views

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python - Train YOLOv3 for multiple classes, adapt from single class case

I would like to do a train using YOLOv3 for multiple classes. I found a code for single class. And I tried to do for ... "%s " % item) Can anyone help to adapt to multiple classes?...

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

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4.1k views

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react-native 能否用 .env 控制打包代码?

.env APP_TYPE=1 代码： {APP_TYPE === 1? <VIEW1/>: <VIEW2/>} 如上，请问如何用ENV文件控制最终打包的代码呢？...

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

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4.2k views

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typescript: declare module exports?

How can i declare that a ts file or files exports some methods? For example there is a es6 file toyota.ts ... 3 files checked using the same declaration. Thanks for any help....

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

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3.9k views

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linux - How to increase size of prefernce dialogue font?

after installing of wolfram Mathematica I Found that size of preference dialogue font is too small and it kinda hard for ... is on ubuntu 20.04 and wolfram version 12.1...

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

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4.3k views

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scatter plot - need scatterplot using different colors for the each points in the same group with the same marker using python and data in excel sheet(csv format)

[I want the graph to be similar to the attached png file and the data is attached as well.][] fig = plt. ... xlabel("Physical Luminance") plt.ylabel("Matched Luminance") plt.show()...

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

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4.0k views

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How can I fix my problem in SVM classification confusion matrix that dose not predict correctly?

the confusion matrix doesnt predict 2 classes correctly: from sklearn import svm clf = svm.SVC(kernel='linear') clf.fit( ... ) plt.savefig('Confusion Matrix SVM.jpg') plt.show()...

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

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12.3k views

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php - fetching all sub-list items under each row using foreach loop inside while loop

I have 2 tables in my product database: product_list(id, Product_ID, Product_Name, Supplier), product_option (id, Product_ID ... company1', only the first result of the while loop....

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

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python - In discord.py, the on_message does not trigger for one guild

I'm trying to figure out how to write a simple bot for Discord. However, the problem I'm facing is that for ... connect to this server in order to receive the messages? Thanks!...

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

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3.1k views

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typescript - Cannot be dynamically inferred after passing some generic parameters

const a = < T extends any = any, B extends boolean = true, R extends T | undefined = B extends ... parameters or dynamically inferred and cannot be use simultaneously the two?...

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

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