• Gradients: filling linear text with canvas


    preface In canvas, the horizontal or vertical linear gradient of text filling can be easily realized, while the gradient with angle is much more complicated; as shown below, suppose that the width of the text rectangle isW, the height isHThe coordinates of the upper left corner areX, Y。 Guess and answer Two answers are given […]

  • Explain the usage of cat text output command in Linux


    Cat command is a text output command under Linux, which is usually used to view the content of a file.1、 FunctionCat has three main functions1. Display the whole file at a time. Copy code The code is as follows: $ cat filename 2. Create a file from the keyboard. Copy code The code is as […]

  • Those HTML elements that are discarded


    With the development of the Internet, many new technologies are emerging to replace the old ones. Why not use some HTML elements or discard some HTML elements? With the development of the Internet, many new technologies are emerging to replace the old ones, and we are also familiar with them. In the Internet technology, we […]

  • On word2vec (1)


    1 word2vec In most tasks of natural language processing, a large number of text data need to be transferred to the computer for information mining for follow-up work. But at present, the computer can only deal with numerical data, and can not directly analyze the text. Therefore, converting the original text data into numerical data […]

  • Opencv Learning Guide (1): image basic operation


    (Note: This article is excerpted from Adrian roserock’s tutorial article, which has been translated and sorted out.) 1. Install opencv and imutils on Ubuntu 16.04 system (1) Opencv was installed in my previous blog post, which can be viewed;(2) Install imutils: pip install imutils If it is usedvirtual environmentRememberAfter entering the virtual environment, install imutilsBriefly […]

  • JS password generator


    Password Generato Recently, referring to some password generators on the Internet, a similar password generator has been imitated. The password is mainly composed of “upper case”, “lower case”, “number” and “symbol”. The specific style is shown in the figure below: development process This paper mainly records the JS development process, and the CSS style will […]

  • Tomcat enable gzip compression


    If we can shorten the transmission time of tomzip, we can shorten the response time of tomzip. Here I amconf/server.xmlConfiguration fragment in: <Connector port=”9915″ protocol=”HTTP/1.1″ maxThreads=”200″ connectionTimeout=”20000″ enableLookups=”false” compression=”on” redirectPort=”8443″ URIEncoding=”UTF-8″ compressionMinSize=”1024″ compressableMimeType=”text/html,text/xml,text/plain,text/javascript,text/csv,application/javascript,application/json,application/xml” /> Please note thatcompressThe first three-stage configuration. Here, we add compression in XML, CSV, JSON and other formats, and specify the length […]

  • If CSS exceeds one line, it does not break the line, but displays the ellipsis


    The text can be displayed in one line by using the text overflow and white space attributes, and if it is exceeded, an ellipsis will be added; The necessary conditions are as follows: Element must be hidden beyond( overflow:hidden; ) Force display on the same line (white space: nowrap;), do not break the line; Ellipsis […]

  • JavaScript HTML DOM relationship level (parent-child sibling relationship)


    With the HTML DOM, you can navigate the node tree using node relationships. DOM node According to the W3C HTML DOM standard, everything in an HTML document is a node The whole document is a document node Each HTML element is an element node Text within an HTML element is a text node Each HTML […]

  • Using swift language to develop Hadoop data flow application


    For detailed source code of this article, please refer to GitHub perfect examples This project shows how to develop Hadoop stream processing application using swift language. SPM is used to compile and test the software, which is also a part of perfect project. This package can be used independently, so it can be separated from […]

  • System.Net.Mail . smtpclient failed to send email through SSL / TLS protocol


    1、 Problem description 1. Problem phenomenon adoptSystem.Net.Mail.SmtpClientFailed to send email using SSL / TLS protocol with errorSystem.Net.Mail.SmtpException: Failure sending mail Detailed error information: System.Net.Mail.SmtpException: Failure sending mail. —> System.IO.IOException: Unable to read data from the transport connection: The connection was closed. at System.Net.Mail.SmtpReplyReaderFactory.ProcessRead(Byte[] buffer, Int32 offset, Int32 read, Boolean readLine) at System.Net.Mail.SmtpReplyReaderFactory.ReadLines(SmtpReplyReader caller, Boolean oneLine) […]