argparse: Python command line parameter passing

The gods are silent - personal CSDN blog directory VX "polarisrising war" can directly search and add author friend discussions. argparse module (Python official document: argparse - command line options, parameters, and subcommand Parser - Python 3.10.2 documentation ), which can be used to pass parameters directly when running Pyt ...

Posted by davestewart on Sun, 20 Feb 2022 03:58:39 +0100

7hutool actual FileUtil file tool class (common operation methods for more than 100 files)

If you are Xiaobai, this set of information can help you become a big bull. If you have rich development experience, this set of information can help you break through the bottleneck 2022web full set of video tutorial front-end architecture H5 vue node applet Video + data + code + interview questions. Technical work should be rewarded follo ...

Posted by tranzparency on Sun, 20 Feb 2022 03:50:08 +0100

Use torch functions. to_ When Tensor() converts an array into Tensor, you need to pay attention to whether the dimension is correct

When deep learning multi band data training, the model has been unable to converge. torch.functions.to_tensor() function Here is to_tensor function source code def to_tensor(pic): """Convert a ``PIL Image`` or ``numpy.ndarray`` to tensor. This function does not support torchscript. See :class:`~torchvision.transforms.ToTensor` ...

Posted by georgebates on Sun, 20 Feb 2022 03:49:36 +0100

Design Guidance for Micro Services - Solving cascade avalanches and efficiency between systems caused by traditional mass runs using cloud native micro services

Problem Description This is also a real production accident, as shown in the following figure This "avalanche" is an internal system avalanche within an enterprise. We all know that if it exists on external http calls, including all restful, soap requests, HTTP type calls: a->b->c->d assumes that system B is an "int ...

Posted by cdickson on Sun, 20 Feb 2022 03:32:08 +0100

MySQL database (grouping and paging, constraints)

1. Group query group by , generally used in conjunction with aggregate functions, the found data is meaningful *Fields to query: 1. Grouping field itself 2. Aggregate function -- For example, I group by part number. For example, there are three departments, and then I calculate the average salary of each department. There should be thre ...

Posted by scottd on Sun, 20 Feb 2022 03:26:58 +0100

python Alipay two-dimensional code payment source code

python Alipay payment WeChat and Alipay SDK Download Click me to download 1. Sandbox environment configuration Offered by Alipay sandbox environment In the development, use your Alipay account to apply for a sandbox account. Can refer to Sandbox instructions Get AppID and so on, then download the Android version of Alipay wallet accordi ...

Posted by porto88 on Sun, 20 Feb 2022 03:17:38 +0100

Headline: educator -- advanced features of Java - JDBC

Level 1: specify the type of JDBC encapsulation Task description This task: encapsulate a JDBC tool class as required. Relevant knowledge In order to complete this task, you need to master the basic use of JDBC. Please refer to the previous training content Advanced features of Java - JDBC (Part 1). This chapter will encapsulate ...

Posted by revdev on Sun, 20 Feb 2022 03:10:29 +0100

Dvwa exercise 06 SQL injection (Low)

brief introduction SQL injection means that the web application does not judge or filter the legitimacy of the user's input data. The attacker can add additional SQL statements at the end of the query statements defined in advance in the web application, and realize illegal operations without the knowledge of the administrator, so as to d ...

Posted by hrichman on Sun, 20 Feb 2022 02:56:08 +0100

Arduino metal detector

Original text: https://circuitdigest.com/microcontroller-projects/arduino-metal-detector-circuit-code Arduino metal detector ARDUINO project Pass by** Saddam **Revised on January 6, 2018 Metal detector is a kind of safety device, which can be used to detect potentially harmful metals in airports, shopping malls, cinemas and other places. We ...

Posted by ginoitalo on Sun, 20 Feb 2022 02:52:07 +0100

Preliminary understanding pointer

1. What is the pointer 2. Pointer and pointer type 3. Field pointer 4. Pointer operation 5. Pointers and arrays 6. Secondary pointer 7. Pointer array 1. What is the pointer? What is the pointer? Two key points of pointer understanding:        1. A poi ...

Posted by TutorMe on Sun, 20 Feb 2022 02:41:17 +0100