1, Introduction to C + +

1, Introduction to C + + 1. C + + initial 1.1 the first C + + program Write code #define _CRT_SECURE_NO_WARNINGS 1 #include <iostream> using namespace std; int main() { cout << "HelloWorld" << endl; system("pause"); return 0; } 1.2 notes **Function: * * add some book titles and explanations to the code to facilitat ...

Posted by Xeon on Fri, 25 Feb 2022 12:07:19 +0100

Principle and code sharing of characteristic stability index PSI

PSI is an index that we need to pay close attention to before and after risk control modeling. This index directly reflects the stability of the model and has direct reference significance for us to evaluate whether the model needs iteration. Today, I will introduce this indicator from the following aspects.Index01 PSI concept 02 PSI generatio ...

Posted by ravensshade on Fri, 25 Feb 2022 11:59:46 +0100

RabbitMQ cluster scheme

catalogue 1. Principle of cluster scheme 2. Single machine multi instance deployment 3.RabbitMQ image cluster configuration 4. Load balancing - HAProxy 4.1 installing HAProxy 4.2 configuring HAProxy The clustering scheme of message queue will be adopted in practical production applications. If RabbitMQ is selected, it is necessary to ...

Posted by 11Tami on Fri, 25 Feb 2022 11:58:25 +0100

PHP: save the uploaded Word file to the MS SQL Server database

It took a whole day to save the uploaded Word file to the MS SQL Server 2014 database. It's the first time to use PHP to develop a small program, which is also very stressful. The main reason is that users think I can finish it soon. It's a little embarrassing. How can it be?! For PHP, I'm still a novice. There's no way but to work hard. It s ...

Posted by timecatcher on Fri, 25 Feb 2022 11:58:48 +0100

[ES6] arrow function

1, What is the arrow function? ES6 allows functions to be defined using "arrows" (= >). let foo = v => v; // The arrow function above is equivalent to: let foo = function(v) { return v; }; The left side of the arrow function (= >) is the parameter and the right side is the function body. 2, Detailed usage 1. ...

Posted by eektech909 on Fri, 25 Feb 2022 11:53:06 +0100

Time stamp and time series feature derivation in time series modeling

Today's brocade bagFeature bag: time stamp and time series feature derivation of time series modelingThere are still many scenarios for the application of time series model in our daily work, such as predicting the future sales order quantity, predicting the stock price, predicting the trend of futures, predicting hotel occupancy, etc. This is ...

Posted by PowersWithin on Fri, 25 Feb 2022 11:50:15 +0100

react parameter transmission related records

Primary directory Secondary directory Tertiary directory 1, Principle related: 1. On the principle of render rendering twice https://www.cnblogs.com/chaoyuehedy/p/9638848.html 2, Question: 1. fetch request let getFileTypesUrl = `${context.contextPath}/projectfile/getAllFileTypes?p_no=` + this.state.projectNo; //Call method this.getF ...

Posted by bob1660 on Fri, 25 Feb 2022 11:26:43 +0100

Create a protection agent using Java API (Head first design pattern)

Create a protection agent using Java API (Head first design pattern) ​ ​ Java in Java Lang.reflect package has its own Proxy support. Using this package, we can dynamically create a Proxy class (Proxy) at runtime, implement one or more interfaces, and forward the call of the method to the class that implements the InvocationHandler interf ...

Posted by travelbuff on Fri, 25 Feb 2022 10:51:58 +0100

Keras running GAN instance (2022.2.25)

1. GAN introduction GAN (generative advantageous networks) is a network proposed by Ian J. Goodfellow and others at the 2014 nips conference. They proposed a new framework for estimating generative models using confrontation processing. The framework can train two models at the same time: one is generative model G (Generator generator Gene ...

Posted by ppgpilot on Fri, 25 Feb 2022 10:26:39 +0100

[redis: I] data structure and basic commands

strings String type is the most basic data type of redis. Other types are based on it. In short, the value of string type means string. We can store simple and complex types of strings (json, xml), numbers, binary files (pictures, audio, etc.). But not more than 512M. Common commands Set value set key value [ex] [px] [nx|xx] redis>set he ...

Posted by dimxasnewfrozen on Fri, 25 Feb 2022 10:02:34 +0100