Programmer Think

    I think I have lived in this world for more than 20 years. The most popular restaurant I have ever been to is KFC's birthday when I was a child. Now I grow up, KFC has become my daily snack. When I go hungry from the front door after work, I will go in and buy a cup of coffee in the morning. It's mainly fast, delicious and full, and it's ...

1, Write in front As a test, sometimes it is often necessary to record their own operation on the screen, so as to facilitate the follow-up development and positioning of students. In the past, screen to GIF was used to record the screen and make dynamic pictures. Occasionally, python can also be realized. Then hurry to learn. 2, Effect display ...

1, Advanced file processing interface shutil Is a high-level file operation toolIt is similar to advanced API, and its main strength lies in its better support for copying and deleting files. usage method Copyfile (src, dst) is copied from source src to dst. Of course, the premise is that the target address has writable permission. The exce ...

In the process of doing crawler, we often encounter the following situations: at first, the crawler runs normally and grabs data normally, but the effort of a cup of tea may make mistakes, such as 403 Forbidden; at this time, the web page may appear the prompt of "your IP access frequency is too high", which may be unsealed after a l ...

1. Introduction Information encryption and information hiding are the main means to achieve information security and confidentiality.A large number of encryption algorithms and methods for hiding information have been invented since ancient times.For example, if you wrap a screw of paper around a stick and write on it, spread it out and pass it ...

Summary of python list method List.append() method purpose The append() method is used to add a new object at the end of the list.grammar list.append(obj) parameter obj: the object added to the end of the list. Return value There is no return value for this method, but the original list will be ...

Image Processing Basis 1. Software Installation In the computer vision course, image processing is done in the python environment, so you need to select the software that can edit the python statement. The visual interface of PyCharm is selected here. In addition, there are editors such as VScode,Su ...

The specific concept and process of YOLOv3 will not be introduced here, but the implementation steps will be explained directly below. Computer environment: win10 + Python 3.6 + tensorflow GPU 1.12.0 + keras GPU 2.2.4 + cuda9.0IDE: PyCharm + Anaconda Catalog I. production of data set 1.1 LabelImg ta ...

Environment Configuration Install PyQt5 Installation using pip makes it easier to use Pycharm and search directly. In addition to pyqt5, there are pyqt5-tools, which contain some commonly used tools for pyqt5. pip install pyqt5 -i http://mirrors.aliyun.com/pypi/simple --trusted-host mirrors.aliyun.com pip install pyqt5-tools -i http://mirrors ...

This article mainly refers to the Rest Framework official website documents: https://www.django-rest-framework.org/  And then I realize my own personal summary. Development tools: Pycharm, python 3.7, Django 2.1, djangorest framework-3.9.4 Contents of this article New project: Serializer: View: urls.py: Configur ...