小编JAN*_*JAN的帖子

我想删除我的字符串的子字符串,它看起来像这样:

At(Robot,Room3)

要么

SwitchOn(Room2)

要么

SwitchOff(Room1)

当我不知道他们的索引时,如何从左括号中移除所有字符(到右括号)？

我需要找到给定数字的因子,例如:

?- divisors2(40,R).
R = [40,20,10,8,5,4,2,1].

代码 :

% get all the numbers between 1-X 
range(I,I,[I]).
range(I,K,[I|L]) :- I < K, I1 is I + 1, range(I1,K,L).
% calc the modulo of each element with the given number :
% any x%y=0 would be considered as part of the answer 
divisors1([],[],_).
divisors1([H|T],S,X):-divisors1(T,W,X),Z is X mod H,Z==0,S=[H|W].
divisors1([_|T],S,X):-divisors1(T,S,X).
divisors2(X,Result) :-range(1,X,Result1),divisors1(Result1,Result,X).

但是当我跑步时,divisors2(40,RR).我得到无限循环,并且屏幕上没有任何内容.

为什么？

问候

这是我目前的菜单:

public class DrawPolygons
{
    public static void main (String[] args) throws FileNotFoundException
    {

        /**
         *   Menu - file reader option
         */

        JMenuBar menuBar;
        JMenu menu;
        JMenuItem menuItem;

        //  Create the menu bar.
        menuBar = new JMenuBar();

        //  Build the first menu.
        menu = new JMenu("File");
        menu.setMnemonic(KeyEvent.VK_F);
        menu.getAccessibleContext().setAccessibleDescription("I have items");
        menuBar.add(menu);

        //  a group of JMenuItems
        menuItem = new JMenuItem("Load",KeyEvent.VK_T);
        menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_1, ActionEvent.ALT_MASK));
        menuItem.getAccessibleContext().setAccessibleDescription("Load your old polygons");
        menu.add(menuItem);

        menuItem = new JMenuItem("Save",KeyEvent.VK_U);
        menuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_2, ActionEvent.ALT_MASK));
        menuItem.getAccessibleContext().setAccessibleDescription("Save the contents of your polygons");
        menu.add(menuItem); …

请考虑以下代码

function readSingleFile(evt) {
            //Retrieve the first (and only!) File from the FileList object
            var myFile = evt.target.files[0];
            var reader = new FileReader();
            reader.readAsText(myFile);
            var myString = reader.toString();
            alert(myString); // print  - "[object FileReader]"
        }

我尝试将所有文​​件内容放入String,例如,如果文件内容是

helloWorld1
helloWorld2

我会得到alert那个内容.

我在 SQL Server 2012 管理下创建了一个在多个表之间有很多连接的新视图。

该视图是在名称下创建的dbo.vw_clientsTransactions。

如何将数据库架构从dbo.vw_clientsTransactions,更改为CL.vw_clientsTransactions？

谢谢

我目前正在学习WCF的基础知识,我偶然发现了以下流程:

这意味着我的客户端需要使用与WCF服务器通信的Proxy类.

为什么我(客户端)不能直接与服务器通话,而不是使用第三方来完成工作？

IEnumerable<T>case是LINQ-to-object,IQueryable<T>是允许LINQ-to-SQL的接口,但是IQueryable<T>继承IEnumerable<T>,所以如何IQueryable<T>在IEnumerable<T>过滤内存中的对象时过滤数据库中的行？

我正在尝试使用 Skaffold 在我的本地机器上部署一个微服务系统。

ingress-srv.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-service
  annotations:
    kubernetes.io/ingress.class: nginx
    nginx.ingress.kubernetes.io/use-regex: 'true'
spec:
  rules:
    - host: ticketing.dot
      http:
        paths:
          - path: /api/users/?(.*)
            backend:
              serviceName: auth-srv
              servicePort: 3000

auth-depl.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: auth-depl
spec:
  replicas: 1
  selector:
    matchLabels:
      app: auth
  template:
    metadata:
      labels:
        app: auth
    spec:
      containers:
        - name: auth
          image: ****MYDOCKERID****/auth
          env:
            - name: JWT_KEY
              valueFrom:
                secretKeyRef:
                  name: jwt-secret
                  key: JWT_KEY

---
apiVersion: v1
kind: Service
metadata:
  name: auth-srv
spec:
  selector:
    app: auth …

我正在 TypeScript MicroService 中运行 Stripe 代码的一些测试：

process.env.STRIPE_KEY = 'sk_test_...............';
import Stripe from 'stripe';
export const stripe = new Stripe(process.env.STRIPE_KEY!, {
  apiVersion: '2020-03-02',
});

但是我不断发现构造函数未定义：

 **TypeError: stripe_1.default is not a constructor**

 1 | import Stripe from 'stripe';
> 2 | export const stripe = new Stripe(process.env.STRIPE_KEY!, {
    |                       ^
  3 |   apiVersion: '2020-03-02',
  4 | });
  5 |

  at Object.<anonymous> (src/stripe.ts:2:23)
  at Object.<anonymous> (src/routes/new.ts:14:1)
  at Object.<anonymous> (src/app.ts:6:1)
  at Object.<anonymous> (src/routes/__test__/newNoMocks.test.ts:3:1)
 

包 JSON：

"dependencies": {    
    "@types/cookie-session": "^2.0.40",
    "@types/express": "^4.17.3",
    "@types/jsonwebtoken": "^8.5.0",
    "@types/mongoose": …

鉴于以下代码：

package core;

public abstract class GeometricElement {

    private float area; 
    public abstract void calculateArea( ); //will be implemented in subclasses 

    public float getArea( ) 
    { 
        this.calculateArea( ); 
        return area; 
    } 

}


package core;

public class abstract PerfectPolygon extends GeometricElement 
{

    public abstract void calculateArea( );


    private float length;
    private int sides;

     public float getRadius()  {    return this.length; }
     public float getSides()  { return this.sides; }

     public void setRadius(float newLength) {this.length = newLength;}
     public void setSides(float newSides) {this.length = newSides;} …