Tag:optional

  • Swift personal learning notes – 02: basic content

    Time:2021-4-17

    This article is purely a Chinese version《The Swift Programming Language》So most of the content is in the article. This article is my study notes, not a formal and systematic record. For reference only There are still a lot of incomprehensible and uncertain points below, which I will point out with “doubtful” notes. Thanks to the […]

  • Tiktok video Api interface Online

    Time:2021-3-2

    Tiktok Api Tiktok tiktok, tiktok, tiktok, tiktok, watermark, video, Api, and video. For more information, please visit the official websiteTiToData Massive data collection Collect 500 million pieces of data for customers every day Tiktok Kwai: covering the mainstream platform: TikTok, Zynn, YouTube, jitter, fast, 1688, little red book, lots of Taobao, American group, hungry, Taobao, […]

  • Summary of interface test case ideas

    Time:2021-2-22

    Recently, in a project, I summarized the design ideas of interface test cases mentioned in eolink usage training, mainly involving two major directions. The first direction is independent interface testing; The second direction is multi-dimensional interface testing, which is achieved by constructing scenarios to enrich the interface test data. Use case design: direction 1: Case […]

  • API cloud developer’s advanced road | [module tutorial] uialbum browser module effect display

    Time:2021-1-22

    Uialbumbrowser is a local media resource scanner, which can scan the resources of the whole device on Android platform, while IOS only scans the resources inside the album. Note that this module only supports IOS 8.0 and later on iPhone devices.Module document address: HTTPS:// docs.apicloud.com/Client -API/UI-Layout / UIAlbumBrowser This example shows the common imagepicker () interface […]

  • Mybatis loop foreach

    Time:2020-12-21

    Foreach usage of mybatis — list, array and map traversal Original address When building dynamic SQL statements in mybatis XML file, tag traversal query conditions are often used. We hereby record the writing methods in different situations! ——-For your reference only—— 1. Properties of foreach element collection:For objects that need to do foreach (traversal) as […]

  • Oracle foundation — single line function (numeric function)

    Time:2020-9-24

    Oracle foundation — single line function (numeric function) function describe ABS(value) Returns the absolute value of IDE CEIL(value) Returns the minimum integer value greater than or equal to value FLOOR(value) Returns the maximum integer value greater than or equal to value POWER(value,exponent) Find the exponent value of exponent of value’s exponent ROUND(value,precision) Round values with […]

  • Yii uses easywechat to implement an applet to obtain the user’s openid

    Time:2020-6-7

    1: Installing easywechat Easywechat documentation: https://www.easywechat.com/docs Using easy wechat in Yii, there are two extensions that can be used: jian74 / yii2-easy-wechat for easywechat 4. X, Max Wen / yii2-easy-wechat for easywechat 3. X, here I use jian74 / yii2-easy-wechat extension composer require jianyan74/yii2-easy-wechat 2: Configure easywechat 1: In config/ main.php Added in component of […]

  • Oracle foundation – single line function (number function)

    Time:2020-5-19

    Oracle foundation – single line function (number function) function describe ABS(value) Returns the absolute value of the specified value IDE CEIL(value) Returns the minimum integer value greater than or equal to value FLOOR(value) Returns the maximum integer value greater than or equal to value POWER(value,exponent) Index value of exponent of value ROUND(value,precision) Round value with […]

  • Linux learning — 3. Command and view command help

    Time:2020-3-8

    Command and detailed use of view command Preface: Through this article, readers can understand the appearance and essence of commands in Linux, and how to use the help provided by Linux to explain how to learn a command they haven’t used. Self study requirements: a little basic English is the best. I will know when […]

  • [laravel novice stepping on the hole series] laravel $kernel – > handle error reporting

    Time:2020-2-26

    Q: My project starts with an error. What about laravel $kernel – > handle A: Check whether controller.php exists in APP / HTTP / controller directory.In general, this problem is caused by deleting this file by mistake. Q: What should I do? A: Rebuild a laravel project 1. Use the command line to enter the […]

  • Getting started with MySQL – DML statements

    Time:2019-11-6

    Preface:  In the last article, I mainly introduced the usage of DDL sentences for you, which may have been discovered by careful students. This article will focus on DML statements to explain the table data related operations. This shows the classification of DDL and DML statements, which may not be clear to some students.DDL (data […]

  • STD ::optional

    Time:2019-10-24

    background We use the concept of “optional” in many programming situations, such as optional parameters, optional return values, etc. But in this respect, traditionC/C++Support is a little weak. The following examples illustrate this problem. Binary search In binary search, it is possible that the value we are looking for is not in the set. Binary […]