Generate tree parent-child structure through hierarchy (Java)

Thought sorting process Taking the vehicle configuration information as an example, the imported template information is as follows. My requirement is fixed to 7 levels, and it doesn’t matter if it is not fixed Just import the last level, that is, /Guangqi Honda, /Guangqi Honda/2018, /Guangqi Honda/2018/car series 01, you only need to import the […]

Realize timed task parsing headerless .csv file into pgsql library (java, SpringBoot)

1. Scheduled tasks package; import; import; import; import; import; import lombok.extern.slf4j.Slf4j; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Value; import; import org.springframework.context.annotation.Configuration; import org.springframework.scheduling.annotation.EnableScheduling; import org.springframework.stereotype.Component; import; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /** * @author stb * @date 2023-05-24 * @description Synchronize XXX data regularly */ @Slf4j @Component […]

The performance test code in the example in the seal library

// Copyright (c) Microsoft Corporation. All rights reserved. // Licensed under the MIT license. #include “examples.h” using namespace std; using namespace seal; /* In this example we show how serialization works in Microsoft SEAL. Specifically, We present important concepts that enable the user to optimize the data size when communicating ciphertexts and keys for outsourced […]

Mathematical modeling of CCR, BCC, and super-efficiency models using python’s pulp library

Article directory Mathematical modeling of CCR, BCC, and super-efficiency models using python’s pulp library 1. CCR, BCC, and super-efficiency model formulas? 1. Input-oriented CCR dual formula 2. BCC model formula 3. Super efficiency model formula 2. Mathematical Model Construction 1. Data example 1.1 How to use the pulp package 1.2 After learning basic modeling, apply […]

Regarding the method of re-signing by ADB after the APK cannot be installed after the relevant server is strengthened, the signature is swiped after hardening, and the compressed so library is aligned by zipalign after hardening

Some problems encountered and their answers in work (Android Chapter) 1. After the relevant server is reinforced, the APK cannot be installed and an error is reported 2. After the signature is brushed after hardening, the method of ADB re-signing 3. Align the compressed so library through zipalign after reinforcement After first hardening: Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: […]

How to configure the CPU and GPU versions of the tensorflow library on Linux Ubuntu

This article introduces the configuration that can be run by CPU or GPU in Ubuntu of the Linux operating system. Methods of Python new version of deep learning library tensorflow. In the article Anaconda configures the new version of the Python tensorflow library (CPU, GPU common) method ( and the configuration method of the new […]

Those interesting, fun and powerful Python libraries

The Python language has always been famous for its rich third-party libraries. Today, I will introduce a few very nice libraries, which are fun, fun and powerful! Data collection In today’s Internet era, data is so important, first of all, let’s introduce several excellent data collection projects AKShare AKShare is a Python-based financial data interface […]